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APF Dome Operation Manual PDF document

1. Star Calibrator C Keystone Site StarCal starcal_llA_1999_0930_Fixed set l E3 File Telescope Operations Graphs SkyMap Window Help oisialal SL fo sielle Figure 6 1 StarCal s main window pages Regi Region Az Regi Residual Az a 1 250 63 Yes 1004 249 55 63 47 70 6 2 240 67 Yes 898 239 43 67 43 71 0 3 242 82 Yes 870 240 66 82 01 72 0 4 222 69 Yes 1615 220 86 69 51 714 5 216 67 Yes 885 215 67 66 88 71 9 6 202 65 Yes 1606 201 49 65 04 70 4 7 203 72 Yes 871 201 97 71 83 70 8 8 189 77 Yes 1596 187 54 77 02 714 gi 182 69 Yes 855 181 40 68 58 69 3 10 186 7 Yes 1596 185 46 77 07 71 11 165 76 Yes 1586 164 94 75 77 69 4 12 172 67 Yes 1588 171 43 66 67 67 4 13 162 63 Yes 834 161 64 62 83 66 9 14 145 64 Yes 815 144 82 63 67 65 1 15 150 68 Yes 826 149 60 68 37 66 9 16 132 74 Yes 1579 131 49 74 32 65 9 x 4 4 Telescope Initialised 9 2 2 Menus 9 2 2 1 File Menu File New Star Calibrator C Keystone Site StarCal starcal_Il A_1999_0930_Fixed set Mi EJ File Telescope Operations Graphs SkyMap Window Help Dota tal 2 8 Ne a Te No Magnitude 1 el 2 24 3 39 4 51 5 56 6 5 2 rd 29 9 38 10 43 11 29 12 24 13 60 14 52 15 4 9 16 42 17 37 Colour DOOrPEAAONAOUNANATE Azimuth Elevation 21 29 1 23 59 1 24 45 7 26 46 1 29 27 8 29 35 1 33 15 2 49 8 8 5 0 64 9 6 4 77 3 6 6 42 3 75 4 0 7 6 23 8 7 9 48 8 8 2
2. The application must be in control of the telescope for this option to be available but an observation sequence does not have to be loaded This command will not in any way affect the observation sequence Right Ascension 10 000000 OK e g 2h 41 10 Declination 0 000000 Cancel e g 33 22 16 79 J2000 C B1950 Proper Motion RA 0 000000 sec time per 100 Proper Motion Dee 0 000000 sec arc per 1007 Parallax 0 000000 seconds of arc Epoch Figure 6 10 The Sky Coordinates dialog Operations Observe Star by Catalog ID This menu item allows the user to specify the identification number for a specific star in the catalog rather than selecting it from the Sky Map page Provided it can be found in the catalog the telescope will start to move to the specified star and the Observe Star dialog will appear Figure 6 9 providing details about the selected star and buttons allowing the user to bring up the Bias Controller dialog or cancel tracking Depending on the range of movement of the telescope it may be able to track the selected star in more than one orientation With this command the telescope will always choose the shortest path to the star If this is not the desired orientation then the telescope may have to be slewed manually to the general area of the sky e g by selecting other stars in between or by using Telescope VCP and then choosing this command again The telescope will continue to
3. Choose Operations Generate Mount Model and select the desired parameters sometimes also known as coefficients and regions from the Mount Model Parameters dialog box Figure 6 8 The coefficients used in the current mount model will be selected by default Note that there must be at least one more region than the number of parameters to calculate It is usually wise to have at least twice as many regions as parameters to ensure the calculations are not under constrained Click the OK button to calculate the parameters and choose the Mount Model tab on the main window or Window Mount Model to display details of the newly generated mount model 111 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 2 Repeat until a suitable model has been generated The aim is generally to produce a model consisting of as many parameters as possible using as many observations as possible and producing low post fit RMS error and low standard deviation in all the parameters If the model does not appear to be very good it may help to remove some parameters or regions Choose one of the parameters with the highest standard deviation to remove and re generate the mount model Parameters which are highly correlated
4. Mount Model The mount model corrects for any small errors caused by mechanical imperfections in the telescope mount Selecting this stage shows the angular position of the axes after the mount model has been applied This is only relevant for Telescope Focus Offset Small corrections may be made to the telescope to compensate for the position of the secondary mirror This stage shows the angular position of the axes after the corrections have been applied This is only relevant for Telescope Encoder At the lowest level the position of each axis is converted to encoder counts and given to the servo control system This stage is not applicable for Sun Fourth listbox Each of the positions selected by the previous three list boxes has an associated velocity The fourth list box selects either Position or Rate velocity information for display Any mention of position in the preceding discussion should be replaced by velocity when Rate is selected Difference Line 1 Line 2 This line displays the difference between the values displayed by Line 7 and Line 2 This is useful for working out the effect that a particular stage has on the telescope position e g the effect of atmospheric refraction or for calculating the following error by comparing Commanded and Actual position 72 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein m
5. The Pre amp Post menu item will display both pre fit and post fit residuals on the same plot This is useful as a measure of the effect of the new mount model StarCal does not have to be in control of the telescope or even attached to it in order to use this command However an observation sequence must be loaded and a mount model must have been generated Azimuth Residuals vs Elevation Pre amp Post Azimuth Residual arcsec Pre Fit points Post Fit paints Elevation degrees Figure 6 13 The Azimuth Residuals vs Elevation graph showing both pre fit and post fit residuals 94 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Graphs Elevation Residuals vs Azimuth This displays a graph showing the elevation residual errors plotted against the azimuth axis Figure 6 14 The menu item leads to three sub items each displaying a different set of the data The Pre Fit menu item will display only the pre fit residuals This may be useful if it is difficult to distinguish pre fit residuals from post fit residuals when both are displayed on the same plot The Post Fit menu item will display only the post fit residuals This may be useful to get additional detail since pre fit residu
6. This menu item toggles automatic refresh of the sky map display which causes the display to be redrawn once per minute By default automatic refresh is on 97 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 9 2 2 6 Window Menu The Window menu is used to select which information page to display in the main window The tabs at the bottom of the main window can also be used See 5 2 4 Information Pages for more details Window Sky Map Display the Sky Map page Window Observations Display the Observations page Window Mount Model Display the Mount Model page Window Catalog Display the Catalog page 9 2 2 7 Help Menu Help Contents This function is not implemented in the current release of the software Help Search This function is not implemented in the current release of the software Help About Star Calibrator This displays a simple About box providing the version and date of the application 9 2 3 Toolbar A toolbar at the top of the main window provides quick access to some of the more common functions Each of the toolbar buttons corresponds to a menu command as shown below Refer to 6 2 2 Menus for more details 98 EOS Space Systems Pty Ltd T
7. 1 Common Problems This section lists some of the more common problems and their possible resolution Applications fail to start up with little or no explanation Check that there is a CommonLocalConfig dm x file in the C WINNT or C WINDOWS folder Check that its settings are consistent across your network Check that there is a dmx file in the same folder as the executable with a matching basename e g Telescope dmx goes with Telescope exe Check this file s settings match with the configuration files for the Dispatcher and ConfigServer Remember to backup files before changing them Stars are not visible There are many possible explanations for not being able to see stars one of which is that the telescope is not tracking correctly There are several known causes for incorrect tracking a few of which are described below If none of these seem to be the answer look for the cause elsewhere in the system e The telescope may have reached a position or speed limit Check the limit and flag indicators in TelescopeVCP for any unusual conditions e The telescope could be out of position because a fault occurred during the homing sequence Try restarting the Telescope application and run it through the homing sequence again e The telescope clock could be wrong The clock is set automatically from the IRIG B time signal supplied by the GPS receiver This is very reliable but nevertheless there is a possibility of failure Che
8. 2 9 Flags Group The Flags group displays various status indicators for the telescope The flags change from green to yellow to indicate the associated condition Clock Sync shows red instead of yellow as a warning The indicators are updated instantaneously whenever any of the conditions change regardless of the settings in the Display group see 5 2 2 4 Display Group Pre Track The currently loaded track hasn t started yet Post Track The currently loaded track has expired Tele Slewing The telescope has reached its maximum speed or acceleration Rotator Slewing The currently selected rotator has reached its maximum speed or acceleration Tertiary Slewing The tertiary rotator M3 is switching between instrument ports Focussing The secondary mirror is currently moving towards its commanded focus position Position Limit The telescope has reached the edge of its allowable range of movement and cannot follow the currently loaded track Sun Alert The telescope is close to or inside the solar halo The current release of the software does not include any form of Sun avoidance However this indicator can be used to determine whether the telescope is pointing dangerously close to the Sun 74 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty L
9. 2 Control Mode Group These two radio buttons are used to take or release control of the telescope Monitor radio button To simply observe the telescope without driving it or changing its operating parameters select this button This is the default selection when first connecting to the telescope Control radio button To take control of the telescope select this button When in control those buttons which initiate actions requiring control such as Go Stop and Emergency Stop will be enabled 8 2 2 3 Mirror Cover The Mirror Cover radio buttons allow the user to open and close the primary mirror cover If the DlOServer is not connected these buttons will be greyed out WARNING Do not operate the dome shutter while the mirror covers are open To avoid contaminants from falling on and possibly damaging the primary mirror always ensure the mirror covers are closed whenever the dome shutter is operated The correct sequence for opening is to open the dome shutter first and then open the mirror covers Likewise the correct 62 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual sequence for closing is to close the mirror covers first and then close the dome shutter Remember protect th
10. 3 Alerts Server Run Cc BOS Servers AlertsServer AlertsServer exe This component handles exceptions 4 Log Server Run C EOS Servers LogServer LogServer exe This component provides an event logging service for the other applications Now any of the servers or clients on any computer may be started including the TelescopeServer The other servers are the TelescopeServer DIOserver and the TrussTemperatureServer which all run on the Telescope Control Computer the MetsServer which runs on a computer connected to the mets station and the TelescopeMetsServer which may run on any computer 7 2 Starting the Clients Once the four essential servers have been started several client applications can be run that will interact with the other servers 1 Telescope VCP Run C EOS Utilities TelescopeVCP TelescopeVCP exe This application is a virtual control panel VCP that provides an engineering level interface displaying low level telescope diagnostics and controls to allow the user to drive the telescope and operate the mirror covers For more details on operating Telescope VCP please see the section of this document devoted to Telescope VCP 51 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure s
11. 4 2 9 4 Stop 5 4 2 9 5 Example of Operation 5 4 2 10 Cooling Systems 5 4 2 10 1 Description 5 4 2 10 2 Fan Cooling Unit 1 e Enable Disable Set 5 4 2 10 3 Fan Cooling Unit 2 e Enable e Disable e Set 5 4 2 10 4 Fan Cooling Unit 3 e Enable 42 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual e Disable e Set 5 4 2 10 5 Example of Operation 5 4 2 11 General Digital Outputs 5 4 2 11 1 Description 5 4 2 11 2 House Lights e Enable e Disable 5 4 2 11 3 Snow Melt e Enable e Disable 5 4 2 11 4 Recirculation Fan 1 e Enable e Disable 5 4 2 11 5 Recirculation Fan 2 e Enable e Disable 5 4 2 11 6 Example of Operation 43 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 44 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Lt
12. 62 9 9 2 53 9 18 45 9 2 33 7 f LE i 4 709 7 4 JN Sky Map Observations Mount Model Catalog F Telescope Initialised Choose this menu item to begin a new observation sequence The New StarCal Dataset dialog will be displayed Figure 6 2 allowing the user to specify various parameters affecting the observation sequence The lt Ctrl N gt key combination can be used as a shortcut to this menu item EOS Space Systems Pty Ltd 82 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual No of stars 10 oo Repeats per star 3 Cancel 1 10 Hel Magnitude Limit 45 __Hep 0 0 3 0 Horizon Limit 10 0 0 45 deg Closest to centre of region Selection Method z C Brightest in region Seeing estimate fi D 0 1 60 arcsec Comments R Figure 6 2 The New StarCal Dataset dialog File Open Open an observation set and mount model saved previously using the File Save command This action discards any observations or mount model currently held in memory The lt Ctrl O key combination can be used as a shortcut to this menu item File Save Saves the current observation set and mount model if any to a file If this is a newly created observation set the user is prompted fo
13. Command Output State E Close State J Reset E Secure Hold Off Set EStop J E Secure State J Reset Feud Set EClose J auis No Communications J _Set ESecure af IV Acquire resources for Safety This control panel includes the following controls and outputs 5 4 2 4 2 Software E Stop e Set set the Software E Stop condition The Software E Stop indicator will illuminate red as will the E Stop State output e Clear clear the Software E Stop condition You will then need to Reset the E Stop State output 5 4 2 4 3 E Stop Button 1 through 6 These indicators will illuminate red if the corresponding E Stop button has been pressed in the Icestorm 2 enclosure 37 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 2 4 4 Software E Close e Set set the Software E Close condition The Software E Close indicator will illuminate red as will the E Close State output e Clear clear the Software E Close condition You will then need to Reset the E Close State output 5 4 2 4 5 Software E Secure e Set set the Software E Secure condition The Software E Secure indicator will illuminate red as will the E Secure State output e Clear clear the Software E Sec
14. Elevation Vv Vv Vv Vv Vv M Vv Vv Vv Vv El Sin az in Elevation El Cos az in Elevation Sin 2 Az Cos El in Azimuth Cos 2 Az Cos El in Azimuth Sin 2 Az in Elevation Cos 2 4z in Elevation Sin 3 Az Cos El in Azimuth Cos 3 Az Cos El in Azimuth Sin 3 Az in Elevation Cos 3 42 in Elevation I Sin 4 A2 Cos EN in Azimuth I Cos 4 Az Cos E in Azimuth T Sin 4 Az in Elevation I Cos 4 Az in Elevation I Sin 5 Az Cos EN in Azimuth F Cos 5 A2 Cos El in Azimuth I Sin 5 42 in Elevation z I Cos 5 Az in Elevation _ Dete Observation Figure 6 8 The Mount Model Parameters dialog Operations Install Mount Model This option installs the current mount model onto the telescope StarCal must be in control of the telescope and must have a mount model loaded for this option to work Note that the old mount model for the currently selected instrument port stored in Telescope ini will be overwritten In case it may be necessary to restore the old mount model it is recommended that Telescope ini be copied to a backup directory before executing this command Operations Observe Selected Star When this menu item is selected the telescope will start to move to the currently selected on the Sky Map page and the Observe Star dialog will appear Figure 6 9 providing details about the selected star and buttons allowing the user to bring up the Bias Controller dialog or cancel tracking 89 EO
15. However the rotator will not move until the telescope begins tracking The current commanded and actual position of the rotator can be monitored from the main window see 5 2 2 7 Status Group Each instrument rotator can be adjusted regardless of whether the M3 is currently directing the beam into it Use Port buttons Click on either Use Port A or Use Port B to rotate the M3 mirror to direct the beam into the desired instrument rotator Apply Refraction checkbox Correction for atmospheric refraction can be applied to any move by checking the Apply Refraction checkbox prior to pressing Go The correction is applied to the elevation position only and depends on the current atmospheric conditions which can be specified using the controls in the Mets group described in 5 2 2 10 Mets Group Focus button This will display the Focus Control dialog see Figure 5 3 This allows the user to monitor or control the position of the secondary mirror Note that Telescope VCP does not have to be in control in order to move the secondary focus This allows the focus to be adjusted while StarCal is tracking a star The secondary mirror mechanism consists of three actuators which together provide the movements of focus piston tip vertical and tilt horizontal Focus position is represented in terms of millimeters measured from the collimated position in the direction away from the primary mirror Tip and tilt are each represented in te
16. In this release of the software the three secondary focus axes are combined into a single set of indicators The indicators are updated instantaneously whenever any of the limits change regardless of the settings in the Display group see 5 2 2 4 Display Group Negative Inner Position This indicates the axis is near the end of its physical range of movement in the negative direction Positive Inner Position This indicates the axis is near the end of its physical range of movement in the positive direction Homing In Progress The axis is currently homing Homing Failed The axis failed in its last attempt to home Warning Following Error The axis is failing to keep up with the servo control system 73 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Fatal Following Error The axis failed to keep up with the servo control system to the point where continued operation is considered dangerous This should cause Telescope Server to abort tracking Speed Limit Reached The axis is operating at its maximum allowable speed in the servo control system This should never occur as the Telescope Server application should enforce speed limits before sending commands to the servo control system 8 2
17. Manual 9 2 2 5 Sky Map Menu This menu is only available when the Sky Map screen is displayed Sky Map Grid Lines This menu item toggles the grid lines on and off the sky map display Sky Map Low Regions This displays circles indicating the position and approximate size of the regions in the current observation sequence which lie in the first 360 of the telescope azimuth range Sky Map High Regions This displays circles indicating the position and approximate size of the regions in the current observation sequence which lie in the range of telescope azimuth motion above the first 360 Sky Map North Hemisphere This displays the stars from the catalog which lie in the Northern hemisphere positive declination Sky Map South Hemisphere This displays the stars from the catalog which lie in the Southern hemisphere negative declination Sky Map Current Time This displays the stars which are currently visible from the connected telescope If no telescope is connected then the sky map display will be blank Sky Map Magnitude Range This displays the Magnitude Range Settings dialog Figure 6 16 which allows the user to specify a subset of the stars in the catalog to be displayed based on their magnitude Display Magnitude Range Settings x Maximum Magnitude 2 00 100 00 Minimum Magnitude 100 00 Cancel 2 00 100 00 Figure 6 16 The Magnitude Range Settings dialog Sky Map Refresh
18. Off Current Position co co Commands m Move Towards Front Angle 58 0 z Rear Angle 58 0 5 Move Enable IV Acquire resources for Both Shutters Disable Home Stop Shutter This control panel includes the following controls and outputs 5 4 2 5 2 Enable 5 4 2 5 3 Disable 5 4 2 5 4 Home 5 4 2 5 5 Move e Front Angle e Rear Angle EOS Space Systems Pty Ltd 39 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 2 5 6 Stop 5 4 2 5 7 Example of Operation 5 4 2 6 Front Rear Shutter 5 4 2 6 1 Description 5 4 2 6 2 Enable 5 4 2 6 3 Disable 5 4 2 6 4 Stop 5 4 2 6 5 Home 5 4 2 6 6 Get Disable Timer 5 4 2 6 7 Set Disable Time Out 5 4 2 6 8 Move 5 4 2 6 9 Example of Operation 5 4 2 7 Azimuth 5 4 2 7 1 Description 5 4 2 7 2 Enable 5 4 2 7 3 Disable 5 4 2 7 4 Example of Operation 5 4 2 8 Vent Doors 40 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Eps Dome Client Alice File E
19. Resource Management is relevant in the case of hardware or devices that may not be useable by two or more users at the same time The Icestorm 2 enclosure contains devices which cannot be safely or sensibly operated by more than one user at a time In order to operate such devices you must acquire ownership of their resources 31 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual The Dome Client makes this easy by presenting a checkbox on all control panels labelled Acquire resources for The exact label depends on the control panel being viewed You will note that some of the buttons on the control panels are disabled until you have acquired the resources associated with that control panel Other buttons are not disabled even if no resources have been acquired These buttons execute commands which do not require ownership of resources and tend to include commands in the following categories e emergency stop get data Emergency stop commands are typically not governed by Resource Management as it would be unsafe to restrict these commands to only a single owning user who may not be aware of the emergency particularly if they are away from their screen or are using the system remotely N
20. See 5 4 2 Log Files for more details Bias Control button This button brings up the Bias Controller dialog box see Figure 5 2 which is also used in StarCal This allows the user to apply offsets to incrementally adjust the telescope position around the currently tracked point The left side of the dialog displays the current offset applied to the telescope Both a digital and a graphical representation are given The graphical representation shows the history of offsets made to the telescope position applying offsets leaves a trail of dots The buttons at the bottom of this half control the graphical display Arrow buttons These zoom the display in and out which is useful for showing detail of small offsets or for getting a broad picture The left arrow reduces the scale of the display in fixed increments while the right arrow increases the scale of the display The current radius of the display is shown to the left of the arrow buttons Centre button This centers the display on the current offset This is useful if the current offset is off the display Clear button This clears the historical trail of offsets from the display After pressing this button only the current offset will be displayed The middle section of the dialog is used to enter new offsets 59 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor d
21. Segment 10 Rotator A 90 Elevation 23 Segment 11 Rotator A 80 Elevation 21 5 Segment 12 Rotator A 70 Elevation 19 3 Segment 13 Rotator A 60 Elevation 18 Segment 14 Rotator A 50 Elevation 15 3 Segment 15 Rotator A 40 Elevation 12 3 Segment 16 Rotator A 30 Elevation 9 5 Segment 17 Rotator A 20 Elevation 6 Segment 18 Rotator A 10 Elevation 3 Segment 19 Rotator A 0 Elevation 0 Segment 20 Rotator A 10 Elevation 3 Segment 21 Rotator A 20 Elevation 5 7 Segment 22 Rotator A 30 Elevation 8 2 Segment 23 Rotator A 40 Elevation 10 2 Segment 24 Rotator A 50 Elevation 12 Segment 25 Rotator A 60 Elevation 12 7 Segment 26 Rotator A 70 Elevation 13 6 Segment 27 Rotator A 80 Elevation 13 7 Segment 28 Rotator A 90 Elevation 13 7 Segment 29 Rotator A 100 Elevation 13 2 Segment 30 Rotator A 110 Elevation 11 7 Segment 31 Rotator A 120 Elevation 9 5 Segment 32 Rotator A 130 Elevation 7 5 Segment 33 Rotator A 140 Elevation 5 2 Segment 34 Rotator A 150 Elevation 2 2 Segment 35 Rotator A 160 Elevation 1 Segment 36 Rotator A 170 Elevation 5 Segment 37 Rotator A 180 Elevation 8 5 EOS Space Systems Pty Ltd User Manual 115 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Ma
22. Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 Software Controls 5 4 1 System Management Interface 5 4 1 1 Description 5 4 1 2 Logon 5 4 1 3 Starting the Observatory Control System 5 4 1 4 Stopping the Observatory Control System 5 4 1 5 Starting an Individual Server 5 4 1 6 Stopping an Individual Server 5 4 1 7 De registering an Individual Server 5 4 2 Dome User Interface The Dome Client is a graphical user interface provided to enable all Icestorm 2 hardware functions to be accessed through software 5 4 2 1 Description The Dome Client presents the Icestorm 2 enclosure as a set of related sub systems including e Safety e Shutters Front and Rear e Azimuth e Vent Doors 1 through 4 e Cooling Systems e General Digital Outputs Each of these sub systems is accessible through a dedicated control panel accessed by clicking the required sub system from the Dome Components list The following figure shows the Safety control panel of the Dome Client 29 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Zoe Dome Client Alice 15 x F
23. Ultimately several computers are used to control the entire observatory However the telescope configuration is made up of a single computer TCC controlling the telescope with other computers set up to communicate with the TCC via the Local Area Network The telescope and enclosure are very loosely coupled in software terms 6 1 4 Software The software on the TCC that is responsible for controlling the telescope is made up of several distinct components A brief description is given below At the lowest level a set of small programs PLCs running on the PMAC provide basic control of the various telescope axes These have been developed by EOST specifically for this project Several high level applications make up the rest of the operational software Principal among these is the Telescope application which controls the telescope via the PLCs TelescopeVCP and StarCal allow a user to communicate with the Telescope application to perform specific tasks with the telescope The DIOServer and the TrussTemperatureServer also run on the TCC LogViewer DeviceBrowser and other applications provide additional services All these applications can be run on remote computers as well Linux versions of the clients will be available Separate utilities supplied by the manufacturers of the interface cards mounted in the TCC provide low level control and diagnostics for the cards PEWin for the PMAC and TEST EXE for the Timecard 6 2 Operations There a
24. amp to SPACE SYSTEMS Panstarrs PS1 Observatory User Manual CI No HBO07753 A DRAFT EOS SPACE SYSTEMS PTY LIMITED LOCKED BAG NO 2 POST OFFICE QUEANBEYAN NSW 2620 A B N 25 100 248 253 TELEPHONE 61 2 6298 8000 FACSIMILE 61 2 6299 2477 IceStorm Enclosure Series 2 User Manual DOCUMENT CONTROL Checked Signed Approved Signed Description Checked Approved IceStorm Enclosure Series 2 User Manual TABLE OF CONTENTS 1 INTRODUCTION 9 2 USER SAFETY 10 2 1 General Personnel Safety 10 2 2 Crush Points 10 2 3 Emergency Stop Facility 11 3 SYSTEM OPERATION WARNINGS 13 3 1 General Warnings 13 3 2 System Familiarization 13 3 3 Access to the Telescope Enclosure 14 3 4 System Logbook 15 3 5 System Configuration 16 3 6 Precautions Before Moving Telescope Axes 16 3 7 Sun Avoidance 17 4 ENCLOSURE SYSTEM OVERVIEW 19 4 1 Dome 19 4 1 1 Description 19 4 1 2 CANopen Sub Systems 19 4 1 2 1 Safety 19 4 1 2 2 Shutters 19 4 1 2 3 Azimuth 19 4 1 2 4 Vent Doors 19 4 1 2 5 Cooling Systems 19 4 1 2 6 General Digital Outputs 19 4 1 3 Safety Systems 20 4 1 3 1 Node States 20 4 1 3 2 People Safe 22 4 2 Telescope 23 4 2 1 Description 23 4 2 2 PMAC 23 4 3 Software 23 IceStorm Enclosure Series 2 4 3 1 Description 4 3 2 Control System Core Servers 4 3 2 1 4 3 2 2 4 3 2 3 4 3 2 4 4 3 2 5 4 3 2 6 4 3 2 7 4 3 2 8 Dispatcher Config Server System State Router Log Server Authentica
25. and is accurate to 1 micro degree 3 6 milli arcseconds Actual Telescope Position El This is the actual absolute position of the telescope elevation axis at the sample time calculated from the actual encoder position The value is represented in degrees up from horizontal and is accurate to 1 micro degree 3 6 milli arcseconds Actual Telescope Encoder Position Az This is the actual encoder position of the telescope azimuth axis at the sample time read directly from the servo control system The value is represented in encoder counts and is accurate to 1 count although six decimal places are reported all 0 The accuracy is approximately 2 2 milli arcseconds in the current version of the software Actual Telescope Encoder Position El This is the actual encoder position of the telescope elevation axis at the sample time read directly from the servo control system The value is represented in encoder counts and is accurate to 1 count although six decimal places are reported all 0 The accuracy is approximately 2 5 milli arcseconds in the current version of the software The file is designed so that it can easily be read into Excel From within Excel 97 choose File Open and select the log file to be opened you may have to choose All Files from the Files of type dropdown list in order to see it The Text Import Wizard dialog box should then appear Select the Delimited option start import at row 1 and make
26. are being held in position Green Operate The telescope is currently actively tracking but may be stationary Yellow Initialising Telescope Server is transitioning to the Initialised state Yellow Configuring Telescope Server is transitioning from the Initialised state to the Standby state Yellow Starting Telescope Server is transitioning from the Standby state to the Operate state Yellow Stopping Telescope Server is transitioning from the Operate state to the Standby state Yellow Terminating Telescope Server is in the process of shutting down No further communications with the application will be possible Red Error Telescope Server has detected a serious error Power has been removed from the telescope drives 68 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Red NotResponding The Telescope Server application is not responding This may indicate that it has crashed or that there is a problem with the network Red Unknown Telescope Server is in an unknown state This may indicate a fault in the Telescope Server application Red Unknown state Telescope Server returned an unrecognized state This may indicate a fault in
27. directory hierarchy below a top level directory called EOS as shown below EOS Configuration System configuration files EOS Servers Server applications 47 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual EOS Utilities Client and utility applications BOS Client The Application Programming Interface for controlling the Telescope 6 5 Installation Procedure To install the telescope control system across a number of computers follow these steps 6 5 1 Installing the four essential servers 1 Identify the computer that will host the Dispatcher which is the most fundamental server Allocate this computer an IP address which will not change In these instructions the chosen IP address is 192 168 0 2 but you may choose whatever address is appropriate 2 From the folder Configuration copy CommonLocalConfig dmx into C WINDOWS Open CommonLocalConfig dmx with wordpad or another text editor Change the IP address 192 168 0 2 between the quotes to the IP address of this machine Now take a copy of the changed CommonLocalConfig dmx for later use 3 Create a folder C EOS Servers 3 From the Servers folder copy the folders Dispatcher ConfigServer AlertServer a
28. down the system follow these steps 52 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 1 Shut down all client applications i e StarCal Telescope VCP and Device Browser 2 Shut down the servers in reverse order e g Telescope Server this has two windows that need to be closed Log Server Alerts Server ConfigServer and Dispatcher Any utility applications Log Viewer DML Editor can be shut down independently of the servers and clients 53 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 8 TELESCOPE VCP Telescope VCP is a client application of Telescope Server and serves as the primary user interface for the telescope It provides diagnostic information and control not normally available through other client applications and can be used to monitor the status of the telescope and drive it to specific positions To use Telescope VCP the system must be started up as described above and the Telescope Server application must be running Other clie
29. excluded from the mount model by the user have a value and standard deviation shown as The covariance and correlation matrices are displayed below the mount model parameters These matrices offer alternative representations of the interaction between parameters Large numbers in the covariance matrix indicate stronger interactions In the correlation matrix values off the diagonal which are close to 1 or 1 identify parameters which are highly correlated Either of 100 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual these conditions suggests that the mount model may need to be refined by removing one or the other parameter The contents of this page can be written to a text file using File Save Report The page will be blank if no mount model has been loaded or generated 9 2 4 4 Catalog Page The Catalog page lists the stars in the current star catalog the FK5 catalog by default These are shown on the sky map display and may be used for observations All the relevant star details are shown catalog number magnitude color and celestial coordinates in right ascension and declination both represented in degrees 9 2 5 Status Bar The status bar at the bottom of the main window
30. in a few narrow elevation bands This provides a very poor spread of points in elevation Brightest in region This will choose the brightest star lowest magnitude and is recommended during poor seeing conditions Because of the problem with banding in elevation when using Closest to centre of region most star calibrations should instead use the Brightest in region option This parameter does not affect stars which the user selects manually using Operations Add New Observed Star Seeing estimate An estimate of the quality of the atmosphere seeing should be entered here This is acomment field which does not affect operation of the software Comments Additional information pertaining to the star calibration should be entered here For example the information may include the observer s name the date the reason for the star calibration and anything unusual about the telescope This field does not affect operation of the software Press OK when the desired parameters have been entered Regions will then be generated to evenly cover the sky above the specified horizon limit Occasionally it may not be possible to provide even coverage using the requested number of regions in which case a message will be displayed to inform the user that additional regions have been created 4 Take control of the telescope 5 Start tracking the next star in the sequence To have StarCal automatically select a star from the next regi
31. in arcseconds and the absolute error for each combining azimuth and elevation residuals into a single value Observations which were skipped or never made are listed as lt Not Observed gt Observations which were deleted from the list when the user generated the mount model are shown as lt Not Selected gt The RMS errors for the pre fit and post fit residuals are calculated and shown at the end of the observation list The post fit RMS error is often taken as a measure of the quality of the new mount model the lower the number the better A good mount model has a post fit RMS error of less than 3 arcseconds The parameters of the generated mount model are shown next The value of each parameter in arcseconds indicates the magnitude of the compensation for that particular effect This is useful when reviewing a history of mount models from the telescope to determine whether its mechanical characteristics are changing The standard deviation in arcseconds of each parameter is also shown Standard deviations represent the amount of uncertainty in the value of the parameter Parameters which are similar in nature may cause instability in the solution and those parameters will have a high standard deviation indicating a high level of uncertainty in the value The goal in generating a good mount model is to choose a set of parameters such that the standard deviations are all small preferably less than 10 arcseconds Parameters which have been
32. move the telescope If another application is already in control of the telescope the request will be rejected and a dialog box will appear indicating which application has control Telescope Release Telescope Control Release control of the telescope so that other applications can take control and move the telescope Only one client application can be in control of the telescope so while StarCal is in control other applications such as Telescope VCP will be unable to move the telescope Telescope Instrument Port Dual Nasmyth only This menu item allows a different instrument port to be used in dual Nasmyth configurations see Figure 6 4 The M3 will then slew 180 degrees if the currently unused port is chosen When a mount model is saved to the TelescopeServer it applies to whichever instrument port is currently selected Normally a mount model should be saved to the instrument port with which the mount model s observations were taken Select Instrument Port Eg Instrument Port Instrument Rotator B Cancel Figure 6 4 The Select Instrument Port dialog Telescope View Mount Model This menu item displays the mount model parameters currently installed on the connected telescope see Figure 6 5 StarCal must be connected to a telescope to be able to access this information but need not be in control 85 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Syste
33. moves around and fall onto the primary mirror 16 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual e any changes to the observatory new devices parts moved or removed etc these can interfere with the normal operation of the telescope and enclosure affecting performance or causing obstruction When operating the system be ready to use the Emergency Stop button and press it if the telescope begins to move out of control enclosure starts slipping i e motor moving but enclosure not moving runs into an obstruction or if something else goes wrong e g smoke appears loud scraping noises are heard etc Telescope Note that if the PLCs have been disabled with PE Win then the button should not be pulled out until the motors have been turned off through software 3 7 Sun Avoidance Avoid pointing the telescope at the Sun Excessive light and heat easily damage the delicate optical components including any instruments mounted to the telescope Even sunlight falling on the primary mirror at an angle can cause damage the reflected rays may focus on the enclosure roof and start a fire Even if the enclosure roof is closed sunlight may get through small cracks The current sys
34. screen to proceed Select the Telescope Connect Telescope menu item and click OK in the Connect Telescope dialog StarCal will display the current sky visible to the telescope Click on a star and it will be highlighted in red Now select the Operations Observe Selected Star menu item and click Yes in the Question dialog to take control of the telescope The telescope will move to the selected star and track it The current status of the telescope is shown in the status bar along the bottom of the window Click the Close button in the Observe Star dialog to stop tracking the star If at any stage an error is encountered for example a telescope tracking error then switch to the Telescope VCP and click the Reset from Error and Clear buttons Then try the failed action again 9 2 Application Structure 9 2 1 Windows StarCal consists of a main window which can display four different pages of information plus a series of menu commands which provide access to many of its functions Most of the operations performed using StarCal are carried out from within various dialog boxes launched from the menu Figure 6 1 shows the four information pages which can be accessed using the tabs at the bottom of the main window See 6 2 4 Information Pages for more information 81 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed
35. see Step 8 below will not add it to the data used to generate the mount model The mistake is easy to correct by clicking the Cancel button in the Observe Star dialog box which is smaller than the Make Star Observations dialog box and does not contain region information and then choosing the correct menu option 6 Wait for the telescope to reach the star 7 Center the star on the reference mark A reference mark must be established on the camera displaying the star images to represent the nominal center of the telescope s field of view If the telescope includes an instrument rotator this is normally defined as the center of rotation of the instrument rotator the point where there is no translation of an image as the rotator is moved Otherwise any fixed reference point on a camera image is suitable Position offsets may have to be entered to adjust telescope pointing to move the star image onto the reference mark Click on the Controller button in the Make Star Observations dialog to bring up the Bias Controller dialog box shown in Figure 5 17 Offsets can be applied in either of the two orientations Azimuth Elevation or Across Along Track Be sure that you do not use rate bias to apply offsets to the star Rate bias will not be used in calculating the mount model If offsets are being remembered see Operations Remember Offsets then the Bias Controller dialog will start at the last offset that was used while tracking the pre
36. such as these require advanced control options and access to the internal workings of the hardware and the software TelescopeVCP the Telescope Virtual Control Panel application serves as the primary user interface for Telescope It supports engineering operations on the telescope by providing low level control and diagnostic information which is not available from other applications See 5 TelescopeVCP for more information All the high level applications record significant events and errors to a log files on the TCC The logs which can be read using the LogViewer application is useful for analyzing operations and diagnosing problems See 8 Log Viewer The interface card utilities such as PE Win provide the lowest level of access to the various hardware devices The degree of control is greater at this level but should not be attempted without specific instructions from EOS This section describes how to install the Telescope Control software package 6 3 Minimum System Requirements The software is designed to run at minimum on computers satisfying the following requirements Windows NT 4 Pentium II 450MHz processor 128 MB of RAM 300 MB free hard drive space on C drive The software can operate on a computer with fewer resources but performance may be less than adequate 6 4 Package Contents The software is provided as a single ZIP archive file containing all the files required for operation These files are arranged in a
37. sure File Origin is set to Windows ANSI then click on Next gt In the Delimiters group make sure Tab is the only option checked Clear Treat consecutive delimiters as one if it is checked since only one tab separates each field Text Qualifier can be left at its default value Click the Finish button to import the file After a moment Excel should display the contents of the file in a new spreadsheet Each column corresponds to a field and the first row contains the field titles Note that Excel allows a maximum of 65535 records to be loaded from a file 80 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 9 TELESCOPE STAR TRACKING STARCAL The StarCal application is one of the clients of the Telescope Server and is the principal means of directing the telescope to track stars and other celestial objects StarCal is also used to calibrate the telescope for pointing errors It includes features for collecting processing and analyzing data in order to generate a new mount model for the telescope This mount model can then be downloaded and installed into the Telescope Server application 9 1 Quick Start Guide Run C EOS Utilities StarCal StarCal exe press a key or click anywhere in the splash
38. the Telescope Server or Telescope VCP applications Red Not connected Telescope VCP was unable to establish a connection to Telescope Server This indicator also displays the following error flags sent back by Telescope Server These messages are often overwritten a moment later by status indicators for the Telescope Server A future release of the software may display these messages in a different place Red Incorrect version The Telescope VCP application is incompatible with the Telescope Server application Either or both of these applications should be updated Red Communications error A error occurred exchanging messages with the Telescope Server application If this error persists seek technical support Red Instrument timeout The Telescope Server application took too long to respond to a message The normal message timeout is 5 seconds This may indicate the Telescope Server application has hung or that there is a problem with the network Red Operation parameters invalid Telescope VCP sent invalid parameters with a message This may indicate a fault in Telescope VCP Red Nested call not allowed This error may mean that the previous message had not been fully processed when another command was sent Try pausing between issuing commands with Telescope VCP Red Operation requires control of telescope Telescope VCP tried to send a command without having control of Telescope Server Thi
39. to keep up e g a star passing very close to zenith elescope Waiting for track to start The currently loaded track hasn t started yet elescope Track has expired The currently loaded track has expired lescope Telescope position limit The telescope has reached the edge of its allowable range of movement and cannot follow the currently loaded track Telescope Avoiding Sun The telescope is inside the solar halo The current release of the software does not include any form of Sun avoidance However this indicator can be used to determine whether the telescope is pointing dangerously close to the Sun Telescope Stopping The telescope is transitioning from the Operate state to the Standby state Telescope Error The Telescope Server application has detected a serious error Power has been removed from the telescope drives Telescope Terminating The telescope is in the process of being shut down No further communications with the Telescope Server application will be possible Telescope Unknown The telescope is in an unknown state This may indicate a fault in the Telescope Server application Telescope NotResponding The Telescope Server application is not responding This may indicate that it has crashed or that there is a problem with the network The status bar also displays a message describing the currently selected menu item 9 2 6 Error Messages Error messages from Sta
40. track the selected star indefinitely If the star moves outside the position range of the telescope it will stop at the limit and wait for the star to re emerge 91 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual The application must be in control of the telescope for this option to be available but an observation sequence does not have to be loaded This command will not in any way affect the observation sequence Operations Remember Offsets This menu item controls whether offsets entered in the Bias Controller dialog will be re used when tracking subsequent stars Selecting this menu item toggles this function on and off Operations Observation Parameters This menu item will display the parameters specified for the current observation sequence in the New StarCal Dataset dialog Figure 6 2 Several of the parameters can be modified if desired 9 2 2 4 Graphs Menu Graphs Polar Plot of Error Vectors This brings up the Polar Plot dialog Figure 6 11 showing the direction and magnitude of residual errors and the position of observed stars in azimuth and elevation Either pre fit or post fit residual errors can be displayed StarCal does not have to be in control of the telescope o
41. using Telescope VCP See 5 2 2 10 Mets Group for more details 107 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 2 Connect to a telescope 3 Start a new observation sequence Choose File New This will bring up the New StarCal Dataset dialog box Figure 6 2 Fill in the parameters for the new observation sequence These include No of stars This is the number of regions in the observation sequence The more regions which are included the better the results will be However it will also take longer to carry out the star calibration Repeats per star To reduce the risk of operator error or errors based on direction of motion of the telescope repeat observations are made for each star Repeats are not implemented in this release of the software Only a single observation of each star will be made Magnitude Limit This specifies the maximum magnitude minimum brightness of stars which will be automatically selected by StarCal from each region Set this according to the visibility of stars on the night If the sky is clear then use the maximum value of 9 If conditions are hazy or somewhat cloudy then use a lower value such as 4 so that only the brighter stars will be selected
42. written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual to the cause of the problem See 10 2 Troubleshooting for tips on solving problems using the event log Error reading master INI file FileName The principal system configuration file KEYSTONE INI could not be found Check that this file is in the Windows NT directory Can t locate entry string in master INI file FileName A vital parameter used by the Telescope application was missing from KEYSTONE INI This may indicate the file has been corrupted or could not be read Error reading INI file FileName The principal configuration file for the Telescope application TELESCOPE INI could not be found Check that this file is in the correct directory as specified in KEYSTONE INI Can t locate string entry string in master INI file FileName A vital parameter used by the Telescope application was missing from KEYSTONE INI This may indicate the file has been corrupted or could not be read or a mistake was made editing the file Common editing errors include misspelling a key name deleting a key or moving a key to the wrong section Error reading Site Data file The site data file SITE SST could not be found Check that this file is in the correct directory as specified in KEYSTONE INI Could not start Telescope application This message appears if an er
43. 70 40 3 58 8 36 3 5 36 3 5 180 39 8 55 3 35 8 8 5 35 8 8 5 117 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Repeat until all sectors of the derotator have values of bias Load these values into a spreadsheet and subtract the bias found at angle 0 degrees from all data points Check the normalized points using a scatter plot A circle is the expected shape Edit any outlier points until they fit on the circle the site seeing will add noise to the original observation data Derotator Az vs EL Calibration Plot Arc Sec Edit the tables in the Telescope ini file confirming that they look similar to any valid existing data Set ENABLED YES and save the file Restart the telescope server and the new values will be loaded To check the calibration point to the pole star and use TelecopeVCP to rotate the derotator the image should now remain stationary 10 2 Collimated Position Setting Default Focus Each instrument should be positioned at the nominal focal plane of the telescope but this may not be possible to the required degree of accuracy This means that the nominal focus position of the M2 after homing will not give best focus for the instr
44. 920000 Ac Ac Ac Ac Ac Ac Ac Ac Ac Ac Ac Ac Ac uator C Collimated Position Offset 9920000 uator A Minimum Position 16000000 uator A Maximum Position 100000 uator B Minimum Position 16000000 uator B Maximum Position 100000 uator C Minimum Position 16000000 uator C Maximum Position 100000 uator A Maximum Velocity 80000 uator B Maximum Velocity 80000 uator C Maximum Velocity 80000 uator A Maximum Acceleration 20000 uator B Maximum Acceleration 20000 uator C Maximum Acceleration 20000 4 Save the Telescope ini file and close it Restart the Telescope Server and home the telescope with TelescopeVCP The correct default focal plane position should now be set EOS Space Systems Pty Ltd 119 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 11 DEVICE BROWSER The DeviceBrowser displays the state of all the servers in the system in real time Servers are displayed in the left pane as an icon Icons are colour coded to reflect the current state of the server Light grey The server is not registered with the Dispatcher As far as the system is aware the server is not running Orange The server is in its init state If the server s devices are robotic they may move only after be
45. ION This document describes the correct use of the Icestorm 2 series of co rotating observatory enclosures for EOS telescopes over 1 5m in aperture Recommended management techniques safe operation and facilities for enhancing the observing quality of the telescope are included EOS recommends that this guide be used as the basis of personnel training before certifying any person as a licensed operator of the observatory system User installed or designed equipment may be described in this document but EOS does not warrant the safety of such third party equipment as used EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 2 USER SAFETY 2 1 General Personnel Safety The observatory systems using the Icestorm 2 enclosures are often highly automated and as such the movement of servo controlled components may begin without prior warning DO NOT place parts of the body in apertures which can close without first conducting a safety analysis of the operation with other users The shutter especially is powerful enough to lift its parts while heavily laden with ice and crush damage could be fatal or lead to amputation After entering the door safety is every user s business Children should not be allowed int
46. J J Acquire resources for Safety Welcome Alice to use Dome Client EOS Space Systems Pty Limited Note that the buttons which Clear or Reset the various software emergency states are disabled So is the button to set the E Secure Hold Off These buttons require you to first acquire the control panel s resources If you click the Acquire resources for Safety checkbox and if the resources are available then you should see the following 33 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual nae Dome Client Alice B mle xj File Edit Help Safety Dome Components Software Inputs Clear Software E Stop Set Ej Shutters i P j Front Shutter E Stop 1 Button E Stop 2 Button J 0 Rear Shutter D E Stop 3 Button J Y Azimuth m E Stop 4 Button J a Paa Vent Doors E Stop 5 Button J Vent Door 1 r Zo E Stop 6 Button J B Vent Door 2 Software E Close J Set Clear Vent Door 3 E Close Button J BR vert Door 4 Software E Secure p Set Clear Cooling Systems UPS Input Pal General Digital Outputs E Secure Hold Off Basu E Stop State J Reset 65555 seconds Software Command Output State E Close State J Reset E Secure Hold
47. Off E Secure State J Reset Outputs Set EStop J tke Set EClose J Foe No Communications J Set ESecure J itl IV Acquire resources for Safety Welcome Alice to use Dome Client EOS Space Systems Pty Limited Note that the previously disabled buttons are now enabled As the owner of the resources you now have exclusive rights to execute these commands without interference from other users When you are finished with resources you should release them by un checking the relevant checkbox If you close the Dome Client then all resources you held will be automatically released Should you try to acquire resources that are already owned in general this will be denied and you will see the following dialog box 34 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual fos Try to acquire resources forcibly 2 xj Alice failed to acquire the resources at DomeServer for DeviceServer Devices Safety Commands at Simulator Do you want to try acquire resources forcibly from other users Yes No Cancel You can attempt to take the resources from their owner by clicking Yes Your attempt will only be successful if you have a higher Rank than the resource ow
48. S Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Bias Controller Display r Position Bias _ r Position Bias Rate Azimuth 35 0 arcsec Azimuth Elevati Azimuth 0 000 asec s Elevation 5 0 arcsec Enu iiaa Elevation 0 000 asec s Azimuth Elevation z a LANERA go A A A A A 1acmn 4 gt Reset Bias 0 001 arcsec sec x Centre Clear Mark Reset Bias Rate Hide Figure 6 17 The Bias Controller dialog 10 Stop tracking Choose Close or Cancel in the Observe Star dialog box to stop tracking The telescope will stop at its current position 9 3 5 Star Calibrations StarCal is often used to calibrate or model the mechanical characteristics of the telescope mount The name of the application in fact comes from star calibration the process whereby a series of star positions are used to collect data to build a model of mount pointing errors Such mount models allow a precise mapping between theoretical and actual telescope pointing angles This procedure describes how to observe a set of stars and acquire data for later use in generating a mount model 1 Set the current meteorological data The meteorological information is used to calculate atmospheric refraction It is important to have current values in order to get an accurate star calibration Meteorological measurements are collected by the TelescopeMetsServer and can be checked
49. S Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Depending on the range of movement of the telescope it may be able to track the selected star in more than one orientation With this command the telescope will always choose the shortest path to the star If this is not the desired orientation then the telescope may have to be slewed manually to the general area of the sky e g by selecting other stars in between or by using Telescope VCP and then choosing this command again The telescope will continue to track the selected star indefinitely If the star moves outside the position range of the telescope it will stop at the limit and wait for the star to re emerge The application must be in control of the telescope for this option to be available but an observation sequence does not have to be loaded This command will not in any way affect the observation sequence Observe Star x Star z Catalog No 907 i Magnitude 2 1 Cancel Color F Controller Position z 359 2588 El 36 3811 Total Bias Az EI Hep Figure 6 9 The Observe Star dialog Operations Observe RA Dec This menu item allows the user to specify celestial coordinates to be tracked In this way objects ot
50. This parameter does not affect stars which the user selects manually using Operations Add New Observed Star Horizon Limit This determines the minimum region elevation and hence the lowest elevation of stars which will be automatically selected by StarCal This value specified in degrees should correspond with the visible horizon of the telescope determined by nearby buildings or trees atmospheric haze operating limitations etc This parameter does not affect stars which the user selects manually using Operations Add New Observed Star Selection Method For each observation StarCal will automatically choose an appropriate star lying within the corresponding region based on the magnitude and horizon limits specified above If more than one star satisfies these conditions then it must pick which one to select according to the criterion specified by this parameter Closest to centre of region This picks the star which is nearest to the center of the region and will give a more even spread of points over the sky However because 108 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual regions occur in rings of equal elevation this option may result ina mount model based on observations
51. VERVIEW 45 6 1 System Components 45 6 1 1 Telescope 45 6 1 2 Telescope Control System 45 6 1 3 Computing Resources 46 6 1 4 Software 46 6 2 Operations 46 6 2 1 Star Tracking 46 6 2 2 Star Calibration 46 6 2 3 Engineering Activities 47 6 3 Minimum System Requirements 47 6 4 Package Contents 47 6 5 Installation Procedure 48 6 5 1 Installing the four essential servers 48 6 5 2 Setting up the Telescope Control Computer 49 6 5 3 Installing servers on other computers 50 6 5 4 Installing StarCal 50 7 TELESCOPE OPERATING INSTRUCTIONS 51 7 1 Starting the Servers 51 7 2 Starting the Clients 51 7 3 Utility Applications 52 7 4 Shutting Down the System 52 IceStorm Enclosure Series 2 8 TELESCOPE VCP 8 1 Quick Start Guide 8 2 Application Structure 8 2 1 Windows 8 2 2 Guide to Controls 8 2 2 1 Top Button Group 8 2 2 2 Control Mode Group 8 2 2 3 Mirror Cover 8 2 2 4 Display Group 8 2 2 5 Polar Plot 8 2 2 6 Move Mode Group 8 2 2 7 Status Group 8 2 2 8 Limits Group 8 2 2 9 Flags Group 8 2 2 10 Meteorological Group 8 2 2 11 Warnings Indicator Box 8 2 3 Error Messages 8 3 Telescope VCP Operations 8 3 1 Driving the Telescope 8 4 File Formats 8 4 1 Track Files 8 4 2 Log Files 9 TELESCOPE STAR TRACKING STARCAL 9 1 Quick Start Guide 9 2 Application Structure 9 2 1 Windows 9 2 2 Menus 9 2 2 1 File Menu 9 2 2 2 Telescope Menu 9 2 2 3 Operations Menu 9 2 2 4 Graphs Menu 9 2 2 5 Sky Map Menu 9 2 2 6 Window Menu 9 2 2 7 Hel
52. a track issued from another client Generally StarCal is started up by running C EOS Utilities StarCal StarCal exe When started a splash screen should appear showing a satellite orbiting the Earth Press any key to proceed to the main window shown in Figure 6 1 Note that the default sky map will be blank until StarCal is connected to a telescope 9 3 2 Connecting to a Telescope This operation is necessary before tracking stars or performing a set of observations If the user tries to track a star before connecting to the telescope StarCal will prompt the user for a site to which to connect 1 Choose Telescope Connect Telescope The Connect Telescope dialog box will appear Figure 6 3 2 Choose the telescope The current site Lick from which you are running StarCal should already be selected in the list box If you wish to use the telescope at another site select the other site from the list or type in the site name Normally it will only be possible to connect to the Lick telescope 3 Press OK to connect to the telescope StarCal will attempt to contact and connect to the Telescope Server application controlling the telescope A remote connection sometimes takes several seconds to complete A message will appear indicating whether the connection was successful or whether it failed If it failed it could be for one of several reasons 103 EOS Space Systems Pty Ltd This document and enclosed information remains the pr
53. ace Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 SYSTEM OPERATIONS 5 1 Enclosure Start Power Distribution Cabinet In principle the enclosure startup sequence is very simple Applying power to the drive cabinets via CB 31 33 and 35 three phase linked breaker and then applying power to the computers a startup sequence will occur automatically as the computers set up the controls and interrogate the limit switches Once the status of the drives and moving parts is established higher level software can send commands to the enclosure In the event that the software control of the enclosure azimuth drive is defective a manual enable switch for enclosure azimuth drives may be included in the azimuth drive control cabinet this is a 25 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual customer option Press the switch in and it illuminates to show that the enclosure azimuth has been set as enabled override Note pushing the telescope will now cause the enclosure to follow and enabling the azimuth drives of the enclosure will automatically cause the enclosure to centre itself on the telescope s azimuth position Typically the higher level commands to the enclosure com
54. als are normally larger and cause the axes to be scaled accordingly when both pre fit and post fit residuals are displayed on the same plot The Pre amp Post menu item will display both pre fit and post fit residuals on the same plot This is useful as a measure of the effect of the new mount model StarCal does not have to be in control of the telescope or even attached to it in order to use this command However an observation sequence must be loaded and a mount model must have been generated Elevation Residuals vs Azimuth Pre amp Post o gt D o fe fm 1 wo a D 18 93 28 39 37 85 47 32 56 78 66 25 75 71 Elevation Residual arcsec 85 17 94 64 Pre Fit points Post Fit points Azimuth degrees Figure 6 14 The Elevation Residuals vs Azimuth graph showing both pre fit and post fit residuals 95 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Graphs Elevation Residuals vs Elevation This displays a graph showing the elevation residual errors plotted against the elevation axis Figure 6 15 The menu item leads to three sub items each displaying a different set of the data The Pre Fit menu item will display only the pre fit r
55. an be selected by clicking on them with the mouse The selected star will be colored red and its details will be displayed to the right of the map This star can then be tracked using Operations Observe Selected Star or added to an observation sequence using Operations Add New Observed Star EOS Space Systems Pty Ltd 99 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Information on the current observation sequence is also shown Stars that have been observed are colored green Regions can be displayed as circles The Sky Map page can be updated automatically once a minute This is only useful if it is set to display the currently visible stars not the Northern or Southern hemisphere views 9 2 4 2 Observations Page This page lists the regions in the current observation set showing which have been observed which have been skipped and which remain to be observed Information includes the region location the position of the star and the pre fit residual error 9 2 4 3 Mount Model Page This page contains information about the mount model generated from the current observation set Details on each observation are listed including the region center the star number and position the pre fit and post fit residual errors
56. any time in order to prevent confusion amongst simultaneous users In this version of the software client control is not enforced so it is possible for StarCal to issue commands to the telescope while Telescope VCP is in control 131 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 15 APPENDIX 1 TELESCOPE HARDWARE USER MANUAL 132 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd
57. are not taken into account and the servo control system may have interpolated to a slightly different value Also the value sent to the servo control system is rounded to the nearest integer accuracy is approximately 2 2 milli arcseconds in the current version of the software Commanded Telescope Encoder Position El This is the commanded encoder position of the telescope elevation axis at the sample time This is the approximate position to which the servo control system was being driven at that time The value is represented in encoder counts and is accurate to 1 micro count Note that this value is approximate speed and acceleration limits are not taken into account and the servo control system may have interpolated to a slightly different value Also the value sent to the servo 79 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual control system is rounded to the nearest integer accuracy is approximately 2 5 milli arcseconds in the current version of the software Actual Telescope Position Az This is the actual absolute position of the telescope azimuth axis at the sample time calculated from the actual encoder position The value is represented in degrees clockwise from True North
58. ate indicator will illuminate These controls are not resource managed and so are available to all users at all times It goes without saying that these commands should only be used in an emergency situation and that you may interrupt the work of another user by executing them Note that these emergency conditions cannot be cleared except by the owner of the safety resources 5 4 2 4 Safety 5 4 2 4 1 Description The Safety control panel provides access to the safety functions and state of the Icestorm 2 enclosure 36 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Zoe Dome Client Alice 15 x File Edit Help C Safety Dome Components Software Inputs Clear Software E Stop ay Shutters E Stop 1 Button a Front Shutter 7 j Rear Shutter wo z X E Stop 2 Button E Stop 3 Button d ry Azimuth J E Stop 4 Button J Paa Vent Doors E Stop 5 Button J t his zoon E Stop 6 Button J Hei a Software E Close J Set Clear jet bond E Close Button J Vent Door 4 Software E Secure J Set Clear Cooling Systems UPS Input F PE General Digital Outputs Outputs E Secure Hold Of Eee E Stop State J Reset 65555 seconds Software
59. ay not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual In order for the difference to be calculated the two lines must be displaying data with the same units If the units are not the same then the display will be blank and Units will be shown as incompatible Summary This line is used to collect and display statistical information for any of the previous three lines When the Collect checkbox is checked statistics of the values displayed by the Line 1 Line 2 and Difference will be calculated each time the display is refreshed The two listboxes on this line allow the user to select the type of statistics to display Minimum Maximum Average RMS and from which line they should be taken Linel Line2 Difference To stop collecting statistics clear the Collect checkbox Changing any of the list boxes in Line 7 or Line 2 or checking the Collect checkbox again will reset the statistical calculations 8 2 2 8 Limits Group The Limits group contains a series of indicators corresponding to various faults or warnings on the telescope During normal operation all indicators should be green Any that are red apart from Homing in Progress indicate a fault or a warning condition A column of indicators is shown for each of the two telescope axes Tele Az and ED the two instrument rotators and one for the secondary focus 2nd Fcs
60. can interfere with one another so removing one often helps reduce the standard deviation for others For example Sin elevation in elevation and Cos elevation in elevation are particularly susceptible to this However removing parameters makes it more difficult for the software to find a model which compensates for those mechanical anomalies so the post fit RMS usually increases Removing regions usually improves the post fit RMS error When choosing regions to remove the best results often come from choosing those with the highest post fit RMS errors However regions should not be removed if it will leave a gap in the coverage of the sky Complete and even coverage is important for ensuring the mount model is valid over the full range of telescope movement 3 Save the mount model Once an acceptable mount model is generated it should be saved to a file using File Save or File Save As The observation details and the last generated mount model are stored in the file and can be reloaded at any later time using File Open allowing further models to be generated and even further observations to be made 4 Install the mount model optional Choose Operations Install Mount Model to download the new mount model to the telescope After confirming the action with the user from then on the telescope will use this mount model on the instrument port which is currently in use Note that the old mount model for the curren
61. ck file consists of a header followed by one or more spline segments in the format described below All fields except the epoch must be separated from one another by whitespace spaces tabs or carriage returns the epoch must be on the first line of the file by itself There is no provision in the file for comments or other characters except that text after the last spline segment will be ignored 76 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Epoch The first line contains the epoch for the track file This fixes the track to a particular date and time which is necessary when tracking objects such as stars The format of the line is YYYY MM DD HH MM SS This allows the epoch to be specified to the nearest second If a track must be specified more precisely this can be done using the time offset in the spline data itself described below For some purposes it may be inconvenient or make no sense to have an epoch For example tracking a stationary target such as a calibration point or performing a predefined maneuver for measuring system performance For these cases the epoch term can be disabled by making the first character of the line a zero 0 Any text after the zero is ignored Number of
62. ck the Clock Sync indicator in TelescopeVCP Press the Refresh button and compare the displayed time with UTC shown on the GPS receiver It should be possible to determine that they are within half a second of each other If it is incorrect restart the Telescope application and check again Also check the signals and connections to the GPS receiver 125 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope stops tracking Check that the telescope status is still Tracking Telescope will stop tracking if it detects a problem with one of the components Check the status indicators on the TelescopeVCP screen Perhaps a position limit was reached or perhaps the application which was controlling tracking was accidentally closed Or maybe the telescope only appeared to stop but was still moving this can often happen in StarCal when moving between stars If you can t tell what went wrong from the status indicators check the event log for errors or warnings which indicate the cause of the failure If the Telescope Control Computer has too many applications running on it performance will be degraded Check the processor usage in the Windows NT Task Manager Close as many applications as you can and t
63. cope to allow their orientation with respect to the tracked object to be adjusted The rotator provides two modes of operation Fixed mode and Position mode Fixed mode is selected using the Fixed radio button In this mode the rotator will move to a position such that the image at the instrument will be oriented with respect to the telescope up elevation direction by the angle specified in the Orientation edit box in degrees The rotator will remain stationary to hold this position regardless of which direction the telescope is pointing Position mode is selected using the Position radio button In this mode the instrument rotator will move to a position where the image at the instrument will be oriented with respect to Celestial North by the angle specified in the Orientation edit 64 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual box in degrees The rotator will track to hold this orientation as the telescope moves After selecting the mode and specifying the angular orientation press OK to execute the move and close the dialog Choose Cancel to return to the main window without changing the rotator position The rotator mode and orientation can be set even when the telescope is not operating
64. d IceStorm Enclosure series 2 User Manual 6 TELESCOPE SYSTEM OVERVIEW This section gives a brief introduction to the EOST 2 4 metre telescope 6 1 System Components 6 1 1 Telescope The telescope is an Alt Az mount with a 2 4 metre diameter primary mirror and optics arranged to feed light down to scientific instruments mounted on a rotator at the Cassegrain focus Nasmyth foci are used on some models The secondary mirror at the top of the telescope is mounted on a Hexapod stage which can be controlled through software giving X Y decentre Z focus as well as tip and tilt The hexapod stage allows for subtle control over collimation of very sensitive optical systems 6 1 2 Telescope Control System The Telescope Control Computer TCC is responsible for controlling the telescope It is located in the Telescope Electronics Cabinet It contains the same set of hardware interface cards and software The two computers can be interchanged by reconnecting cables from one to the other The user can interact with the TCC using the keyboard and monitor situated nearby or it can be controlled via another computer over the Local Area Network Under normal circumstances the TCC is designed to run remotely without an operator An important component of the servo control system is the PMAC which stands for Programmable Multi Axis Controller This is a PC based motion control system designed by Delta Tau in the U S which is used to control t
65. d an observation sequence for this option to be accessible If all the regions in the sequence have been observed then this request will be rejected Make Star Observations Eg Region Si ak Number 1 Catalog No 221 Centre z 94 Magnitude 4 2 Cancel Tia Color K Sonia Radius 21 Position Az 35 EI 86 Skip Star Hel r Observation He Repeat No 1 of 3 One repeat only Position z Total Bias Az El El Figure 6 6 The Make Star Observations dialog Operations Add New Observed Star This command allows the user to add a new region to the observation sequence using the currently selected star The new region will be created with the currently selected star at its center and will be inserted into the observation sequence The order in which regions occur in the observation sequence is immaterial Depending on the range of movement of the telescope it may be able to track the selected star in more than one orientation In this case the Select Telescope Orientation dialog box will be displayed Figure 6 7 allowing the user to specify which orientation to use Note that the choice will determine the spread of data points in the observation set an important aspect affecting the quality of the mount model After the orientation is selected if the option is given the telescope then commences to track the star the Make Star Observations dialog will be displayed Figure 6 6 and the user continu
66. d manner This is less harsh on the telescope than an emergency stop but takes longer and may not work if the telescope is out of control This button is only enabled when Telescope VCP is in control of the telescope Emergency Stop button This button can be used to halt the telescope in an emergency It should be used sparingly as it will bring the telescope to a jarring stop This has the same effect as pressing and releasing the physical Emergency Stop button on the cabinet although it relies on the software in order to work The physical Emergency Stop button is preferable in an emergency as it connects directly to the hardware To stop the telescope smoothly in non emergency situations use the Stop button Pressing this button once will halt the telescope The next slew or track command which is issued will cause the telescope to resume tracking from its current position Pressing this button twice will force the telescope to re execute its homing procedures when it receives the next slew or track command This button is only enabled when Telescope VCP is in control of the telescope 8 2 2 7 Status Group This set of controls displays information about the telescope including time status and position The information is displayed on initial connection Time and position are updated whenever the Refresh button is pressed or the telescope is being polled periodically see 5 2 2 4 Display Group Status is updated whenever the telescope
67. ded absolute position of the telescope azimuth axis at the sample time The value is represented in degrees clockwise from True North and is accurate to 1 micro degree 3 6 milli arcseconds Commanded Track Position El This is the commanded absolute position of the telescope elevation axis at the sample time The value is represented in degrees up from horizontal and is accurate to 1 micro degree 3 6 milli arcseconds Commanded Biased Position Az This is the commanded biased position of the telescope azimuth axis at the sample time which corresponds to the commanded absolute position with position and time bias applied The value is represented in degrees clockwise from True North and is accurate to 1 micro degree 3 6 milli arcseconds Commanded Biased Position El This is the commanded biased position of the telescope elevation axis at the sample time which corresponds to the commanded absolute position with position and time bias applied The value is represented in degrees up from horizontal and is accurate to 1 micro degree 3 6 milli arcseconds Commanded Telescope Encoder Position Az This is the commanded encoder position of the telescope azimuth axis at the sample time This is the approximate position to which the servo control system was being driven at that time The value is represented in encoder counts and is accurate to 1 micro count Note that this value is approximate speed and acceleration limits
68. displays the state of the connected telescope mm Telescope disconnected StarCal is not currently connected to any telescope Telescope connected A connection to the telescope has just been made elescope Initialising The telescope is transitioning to the Initialised state elescope Initialised The telescope is ready to accept commands No power is applied to the telescope drives Telescope Homing The telescope is transitioning from the Initialised state to the Standby state This usually indicates that the telescope axes are being homed Telescope Standby The telescope is ready to accept commands Power has been applied to the telescope drives and they are being held in position Telescope Starting The telescope is transitioning from Standby to Tracking where it will attempt to follow the currently loaded track Telescope Tracking The telescope is following the currently loaded track 101 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope Slewing The telescope has reached its maximum speed or acceleration It may be slewing to the start of a newly loaded track or the tracked object may be travelling too fast for it
69. dit Help r All Vent Doors Dome Components m Node Status f El Safety Vent Door 1 YentDoor2 Yent Door 3 Vent Door 4 z FET Shutters r a Node State Operate Operate Operate Operate l 7 Front Shutter Node Life Line Disabled Disabled Disabled Disabled h a Rear Shutter App Life Line Waiting Disabled Disabled Disabled r Faults Vent Door 1 YentDoor2 Yent Door 3 Yent Door 4 No Communications Timeout Limit Switches C Gwe amp SY Ge amp Wwe amp amp amp amp Unexpected Change 2 l W General Digital Outputs Vent Door 1 Yent Door 2 Yent Door 3 Yent Door 4 p Emergency State Closed Closed Closed Closed Software Command Output State ne 5 Limits Closed Closed Closed Closed Set ESto 2J 2 Dome State OPAUTO OPAUTO OPAUTO OPAUTO _Setestop_ Set EClose J Open Close Stop _SetESecue Set ESecure J IV Acquire resources for all Vent Doors All Vent Doors 41 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 2 8 1 Description 5 4 2 8 2 Open 5 4 2 8 3 Close 5 4 2 8 4 Stop 5 4 2 8 5 Example of Operation 5 4 2 9 Vent Door 1 4 5 4 2 9 1 Description 5 4 2 9 2 Open 5 4 2 9 3 Close 5
70. e series 2 User Manual Minimum string position number must not be greater than maximum string position number The two specified parameters in TELESCOPE INT defining the minimum and maximum values in a range are inconsistent Default position number arcsec number cts must be between position limits number number The specified parameter in TELESCOPE INT defining the default position for an axis is outside the allowable position range for the axis Rotator scale must not be zero A value of 0 is not allowed for the parameter in TELESCOPE INI specifying the scale of an instrument rotator string rotator position number must not be greater than string rotator position number The two specified parameters in TELESCOPE INT defining the minimum and maximum values in a range for an instrument rotator are inconsistent Maximum string number must be greater than zero The specified parameter in TELESCOPE INI must be greater than 0 Error clearing motor errors The error flags for one or more axes could not be cleared This may indicate that there is a persistent fault with that axis 14 4 Known Issues There are several known issues with this version of the software Creation of files in C Temp Diagnostic data files may be created in the C Temp directory by the Telescope Server Note that the Telescope Server will not run if it can t create and write to such a fi
71. e Don t Care Fault Inactive Active Don t Care Don t Care Don t Care Don t Care Don t Care E Stop Inactive Inactive Active Don t Care Don t Care Don t Care Don t Care Manual H W Inactive Inactive Inactive Active Don t Care Don t Care Don t Care E Close Personnel Inactive Inactive Inactive Inactive Active Don t Care Don t Care Safe Inactive Inactive Inactive Inactive Inactive Active Don t Care Manual S W Inactive Inactive Inactive Inactive Inactive Inactive Active E Secure Inactive Inactive Inactive Inactive Inactive Inactive Inactive Autonomous 4 1 3 3 People Safe Dome state priority table A switch immediately inside the entry door activates the People Safe mode This mode limits the IP addresses which can operate the internal servo systems of the enclosure Itis designed to allow internal PCs to control the enclosure during maintenance but to prevent remote operation while personnel may be in the vent door or shutter apertures or may have limbs in moving interfaces When DISENGAGING the People Safe mode a thorough safety check of all moving interfaces is recommended e Shutters e Vent Doors e Drive Wheels e Support Bogeys e Seals pier and ringwall e L1 Floor Edges pier and outer edge Look for tools debris rags displaced equipment fasteners EOS Space Systems Pty Ltd 22 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Informatio
72. e from two sources The OTIS enclosure interface allows the manual control of all telescope independent parts such as shutters and vent doors The telescope control computer may move the telescope and the enclosure will follow the azimuth movement using trimming feedback from the interface beam potentiometer Shutters may also be controlled in a tracking mode if not opened fully The co rotating enclosure will monitor its relative azimuth position to the telescope If the proximity switches on the interface beam are tripped by a failure to follow the telescope correctly the following actions will occur in the low level enclosure firmware Activation of the inner proximity switches will disengage telescope power in the direction causing the violation 26 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Activation of the outer proximity switches will have the same effect with dome power being removed by a latched switch The dome power must be restored by software command after moving the telescope away from the limits Use of key switch explain here 5 2 Enclosure Stop To shut down the enclosure use the status bar on the enclosure control PC and right click each server in turn shutt
73. e primary mirror 8 2 2 4 Display Group These control the rate of display of time and position information in the Telescope VCP main window and in its focus dialog They also control the rate at which records are written to the log file during data logging Note that status information including the status of individual components and axes as well as the overall status of the telescope is updated automatically whenever it changes independent of the controls in this group Refresh button The Refresh button is used to update the time and position information displayed by Telescope VCP Each time the button is pressed new data will be retrieved from the telescope and displayed This may be useful for taking a snapshot of the telescope time and position coinciding with a particular event Every checkbox The Every checkbox and the associated edit field are used to poll the telescope continuously for time and position information This provides a constantly refreshing display and is functionally equivalent to pressing the Refresh button at regular intervals Enter the refresh period in seconds into the edit field and check the Every box to start refreshing the display at the specified rate To change the rate type a new value into the edit field and then uncheck and recheck the Every box The smallest supported refresh period is about 0 5 seconds Although telescope performance should not be affected frequent polling of the telescope po
74. eStorm 2 Dome Server and accept command parameters 30 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 2 2 Logon When accessing the Dome Client you will first be asked to log on You will be presented with the following dialog box fos Dome Client Logon 2x Log onto Dome Client User Name alice D Password Cancel Enter a valid user name and password into their respective fields and click OK If you entered a valid user name and password then you will be presented with the Dome Client interface If you entered an invalid user name and password pair then you will be asked to try again fos Logon failed E x Dome Client could not log you on Make sure your user name is correct then type your password Letters in password must be typed using the correct case 5 4 2 3 General Features 5 4 2 3 1 Resource Acquisition The software control system implements a facility called Resource Management This facility makes it possible for a given user to take temporary ownership of various system resources such as hardware devices Once such a resource is owned by a user certain aspects of its behaviour become unavailable to other users until the owner releases the resource So
75. ed by Telescope Server enter new values into the edit boxes and press the Set button This can be done even if another client is in control The values need to be updated periodically while tracking stars The TelescopeMetsServer automatically performs this function using data from the MetsServer and the Truss TemperatureServer 8 2 2 11 Warnings Indicator Box The box at the lower right of the screen lists other system warning and fault indicators which are active 8 2 3 Error Messages Error messages from Telescope VCP can appear in several different forms in a dialog displayed to the user as a status message displayed in the main window see 5 2 2 7 Status Group and 75 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 2 2 11 Warnings Indicator Box or as an error event in the system event log Errors recorded in the system event log are usually self explanatory 8 3 Telescope VCP Operations 8 3 1 Driving the Telescope As an example of how to use Telescope VCP the following procedure shows how to slew and track the telescope 1 Start up Telescope VCP and connect to the telescope 2 Select the Control radio button in the Control Mode group This allows Telescope VCP to drive the tele
76. enough information to diagnose the problem directly 126 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual If this doesn t help you will have to consider the context of the error Look for the first error message or event which occurred to see where the problem started Use the timestamp on each event to determine which events occurred relatively close to the problem If this doesn t help look for the last related event to see the ultimate effect e g the application terminated Then check the errors and events in between to get progressively more contextual information 14 3 Telescope Error Messages Error messages from the Telescope application can appear in a dialog displayed to the user or as an error event in the system event log Each of these is described below 14 3 1 Dialog Errors Several errors may be reported by the Telescope application to the user in dialog boxes The most common ones are shown below Dialog errors will also be written to the system event log In all cases check related errors and events in the log to help determine the cause of the problem Could not start Telescope application This message appears if an error occurred during initialization of the application There a
77. eries 2 User Manual 2 StarCal Run Cc EOS Utilities StarCal StarCal exe This application provides a higher level of interface than the Telescope VCP that allows the user to track stars It also has functions for calibrating the pointing model used by the telescope For more details on operating StarCal please see the section of this document devoted to StarCal 3 Device Browser Run c EOS Utilities DeviceBrowser DeviceBrowser exe This optional application provides real time updates of server state 7 3 Utility Applications Two utility applications are provided as part of the system These run independently of the servers and clients 1 Log Viewer This application can be used to view the event logs elf for the system Event logs are written by each application and can be found in that application s Logs subdirectory To run Log Viewer run C EOS Utilities Log Viewer Log Viewer exe 2 DML Editor This application can be used to view and edit the configuration files for several of the applications in the system The editor ensures the format of the data in the files is correct These configuration files are either DML Extend files dmx or DML Schema files Schema dms and are found in various locations in the EOS directory structure To run the DML Editor run C EOS Utilities DML Editor DMLFileEFdit exe The editor will not open files which are read only 7 4 Shutting Down the System To shut
78. es as for Operations Observe Stars However note that canceling out of this dialog will discard the new region rather than adding it to the observation sequence 87 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual The telescope will continue to track the selected star indefinitely If the star moves outside the position range of the telescope it will stop at the limit and wait for the star to re emerge The application must be in control of the telescope and have created or loaded an observation sequence for this option to work New regions can be added at any point in the sequence even after all other regions have been observed Select Telescope Orientation x The selected star can be tracked in several different orientations Please select the appropriate orientation from the list below Cancel Orientations Azimuth 164 9 deg Elevation 69 7 deg Azimuth 164 9 deg Elevation 69 7 deg Elevation 69 7 deg Figure 6 7 The Select Telescope Orientation dialog Operations Generate Mount Model This option is used to generate a mount model from a set of observations The Mount Model Parameters dialog box is displayed Figure 6 8 allowing the user to select which m
79. esiduals This may be useful if it is difficult to distinguish pre fit residuals from post fit residuals when both are displayed on the same plot The Post Fit menu item will display only the post fit residuals This may be useful to get additional detail since pre fit residuals are normally larger and cause the axes to be scaled accordingly when both pre fit and post fit residuals are displayed on the same plot The Pre amp Post menu item will display both pre fit and post fit residuals on the same plot This is useful as a measure of the effect of the new mount model StarCal does not have to be in control of the telescope or even attached to it in order to use this command However an observation sequence must be loaded and a mount model must have been generated E Graph of x levation Residuals vs Elevation Pre amp Pos 9 46 0 00 9 46 18 93 28 39 37 85 47 32 56 78 66 25 75 71 Elevation Residual arcsec 85 17 94 64 1 11 21 31 41 51 61 71 31 Pre Fit points Post Fit paints Elevation degrees Figure 6 15 The Elevation Residuals vs Elevation graph showing both pre fit and post fit residuals 96 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User
80. ey would only be used in emergencies and then only when the hardware is visible via a camera or some such 4 1 3 2 7 E Secure This is similar to E Close except with a lower priority This state is also latched The Safety node is responsible for propagation of this information There are several inputs that can be configured to be E Secure inputs The current simulator is configured to have two inputs Each of the inputs has a timer associated with it that will start to decrement when ever the input becomes active If the timer reaches 0 zero then the E Secure output becomes active Each of the inputs timers has an associated reset command The IceStorm II Server is currently configured hard coded at present to send a timer reset command only to the UPS E Secure input when it received the ESecureHoldOff command 21 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 4 1 3 2 8 Autonomous This is the normal state all software commands are allowed Node Inputs User Manual Manual Personnel Software Fault E Sto E Close E Secure Mode i Stop Drive Key C Safe Key Manual Secu Active Don t Care Don t Care Don t Care Don t Care Don t Car
81. have a function definition like this for onTelescopePublish void onTelescopePublish const std string amp const eos DMLSource amp publication double dActualAzimuth 0 0 Actual telescope azimuth in radians double dActualElevation 0 0 Actual telescope elevation in radians if publication find TELESCOPEPOSITION publication get TELESCOPEPOSITIONACTAZ dActualAzimuth publication get TELESCOPEPOSITIONACTEL dActualElevation 123 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 14 FAULTS AND MAINTENANCE This section describes regular maintenance of the software and how to diagnose and fix some problems in the system It lists several known Telescope faults 14 1 Software Maintenance This section describes the software maintenance tasks which must be carried out to maintain trouble free operation The telescope control system software is relatively maintenance free and requires no additional maintenance effort beyond the normal maintenance carried out for the software as a whole e g regular backups This maintenance should include regular backup of configuration files including archiving of obsolete log files see 8 Log Viewer 14 1 1 Earth Orientatio
82. he motion of motors with very high precision Other components of the control system include the Digital I O Planar DIOP a subassembly which handles digital signals relating to the telescope a temperature monitoring system and a timing subsystem The timing subsystem consists of a GPS receiver which supplies accurate timing signals to the PMAC and a TrueTime Timecard mounted in the TCC These signals include a 1MHz pulse stream a 1PPS signal and an IRIG B time signal which are all used to synchronize the telescope to UTC The TCC is mounted in the Telescope Electronics Cabinet The cabinet also houses the power amplifiers the timing subsystem and other support circuitry for the telescope The telescope Emergency Stop button a single red button with a built in light is connected to the telescope control cabinet by a flying lead When pressed this button removes power from the telescope motors preventing the telescope from moving This is provided as a safety feature to prevent damage to the system if the motors run out of control and to prevent injury to personnel working on or near the motors and other moving parts 45 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 6 1 3 Computing Resources
83. hen operating the system In particular you should follow the instructions in this document exactly as written Some of the procedures described in this document involve complex steps Making a mistake on any of these steps will usually cause the system to fail Sometimes it fails in obvious ways such as not moving when commanded while at other times the failure can be very difficult to detect such as a small error in the system clock In a few cases not following the instructions carefully can damage the telescope If after several attempts things don t appear to be working as described shut down the system and start from the beginning If this still doesn t help contact authorized engineering support personnel Itis impossible to predict what could go wrong and provide instructions for overcoming every problem Similarly it is difficult even for experts to work out why the system is not behaving as it should 3 2 System Familiarization Become familiar with the system Learn how the system works by watching someone else operate it Gain experience working under the guidance of others before attempting to operate the system without supervision Know what to expect and why so that you can recognize when the system is not operating correctly Act quickly to avoid damage or injury The system can be very easily damaged by the wrong action or simply by not acting quickly enough when things go wrong If you see the tele
84. her than the stars in the current catalog can be tracked The Sky Coordinates dialog will be displayed Figure 6 10 allowing the user to enter right ascension R A and declination dec and to select the equinox for the coordinates Parallax and proper motion can also be specified if desired Once the coordinates have been entered the telescope will start to move and the Observe Star dialog will appear Figure 6 9 showing the celestial coordinates instead of the star magnitude and color normally shown It also provides buttons allowing the user to bring up the Bias Controller dialog Figure 6 17 or cancel tracking Depending on the range of movement of the telescope it may be able to track the specified coordinates in more than one orientation With this command the telescope will always choose the shortest path If this is not the desired orientation then the telescope may have to be slewed manually to the general area of the sky 90 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual e g by selecting other stars or coordinates in between or by using Telescope VCP and then choosing this command again The Sky Coordinates dialog remembers the previous settings making it easy to repeat the command
85. herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual should not be allowed to enter the enclosure it is a remotely operated machine moving over 20 tonnes of suspended mass without warning If you wish to work on or near the telescope press an Emergency Stop button This will ensure that the telescope cannot move Always inform others if you intend working on the telescope Because the telescope can be controlled remotely it is possible for someone to start up the system without realizing that you are nearby Reset of ESTOP conditions should not be regarded casually Be certain it is safe to do so In some cases it will be necessary to work on the telescope while it is operating for example during maintenance or when measuring performance In these situations always observe the Emergency Stop button nearest to you and be prepared to use it in an instant If this is not possible then have someone else attend an Emergency Stop button and watch for danger 3 4 System Logbook When several people or groups are sharing the telescope it is important to communicate information about the status of the system Use a system logbook EOS recommends the establishment of a logbook which everyone working with the telescope will use to record the status of the system and any problems which have been encountered Each time the tele
86. his document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 Toolbar Button OD New 5 Open Save a Save Report ii Grid Lines Low Regions B High Regions ic Current Time Northern Hemisphere B Southern Hemisphere amp Refresh Remember Offsets 9 2 4 Information Pages User Manual Menu Command File New File Open File Save File Save Report Sky Map Grid Lines Sky Map Low Regions Sky Map High Regions Sky Map Current Time Sky Map North Hemisphere Sky Map South Hemisphere Sky Map Refresh Operations Remember Offsets The four main window information pages can be selected by clicking on the tabs at the bottom of the main window Figure 6 1 or by choosing the page from the Window menu The user can switch between these four pages at any time provided no dialog box is displayed 9 2 4 1 Sky Map Page The Sky Map page presents a graphical depiction of the night sky showing dots for stars currently visible from the telescope or alternatively for the stars in the Northern or Southern hemisphere If StarCal is not connected to a telescope then the sky map will be blank when showing the currently visible stars The magnitude of each star is represented by the size of its dot Stars c
87. ile Edit Help Safety Dome Components Software Inputs a aa Software E Stop J Set Clear utters E Stop 1 Button J TF j Front Shutter E Stop 2 Button J a j Rear Shutter E Stop 3 Button J 7 4 Azimuth ry E Stop 4 Button J p Mal Vent Doors E Stop 5 Button 2 Vent Door 1 R es E Stop 6 Button J Rg Vent Door 2 Software E Close J Set Clear Hven Door 3 E Close Button J B Vent Door 4 Software E Secure J Set Clear Cooling Systems UPS Input J PE General Digital Outputs Outputs E Secure Hold Off rE k iha E Stop State J Reset 65555 seconds Software Command Output State E Close State J Reset E Secure Hold Off Set ESecure J Set EStop J E Secure State Reset 4 e Faults Set EClose J No Communications J J Acquire resources for Safety Welcome Alice to use Dome Client EOS Space Systems Pty Limited The major features of this interface include e buttons and checkboxes submit commands to the Icestorm 2 Dome Server e indicator lights indicate status as reported by the Icestorm 2 Dome Server These will illuminate as follows o grey connected available attribute not set o orange not connected no communication attribute value not known o green active state for this attribute e g this vent door now open o red error state for this attribute e g E Stop override for this attribute e text fields show data reported by the Ic
88. in order to use this command However an observation sequence must be loaded and a mount model must have been generated Azimuth Residuals vs Azimuth Pre amp Post A O Q w oO ih T J w Q Ma f E N lt lt 268 223 178 133 88 43 2 47 92 137 182 227 Pre Fit points Post Fit points Azimuth degrees Figure 6 12 The Azimuth Residuals vs Azimuth graph showing both pre fit and post fit residuals 93 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Graphs Azimuth Residuals vs Elevation This displays a graph showing the azimuth residual errors plotted against the elevation axis Figure 6 13 The menu item leads to three sub items each displaying a different set of the data The Pre Fit menu item will display only the pre fit residuals This may be useful if it is difficult to distinguish pre fit residuals from post fit residuals when both are displayed on the same plot The Post Fit menu item will display only the post fit residuals This may be useful to get additional detail since pre fit residuals are normally larger and cause the axes to be scaled accordingly when both pre fit and post fit residuals are displayed on the same plot
89. ing commanded to home or undertake some startup procedure Yellow The server is in its ready state If the server s devices are robotic they should not move unless the server is commanded to enter operate state Green The server is in its operate state If the server s devices are robotic they may move at any time Red The server is in an error state If the server s devices are robotic they should be disabled but any problem must be investigated before proceeding The server may then be reset It will then be in init state Dark grey The server is registered with the Dispatcher but cannot be contacted This can occur if a server application crashes or a network connection is lost To fix the problem the server should be restarted twice or the network connection should be reestablished The detailed information published by the currently selected server is displayed in the right pane To select a server click on its icon in the left pane Below this data are buttons for each of the commands which may be issued to the server It is strongly recommended that the buttons not be used Instead all commands to the servers should be issued through the programming API or through the provided user interfaces such as TelescopeVCP 120 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent fro
90. ing each server down Shut down the PC then switch off the drives via their marked circuit breakers Telescope and instrument power and UPS feed are not discussed in this manual 5 3 Manual Controls Near each vent door is a manual operation switch This switch may be enabled and will then override the software controls operating independently from remote control commands but with the position switches correctly indicating the Open Closed status to remote software Manual Vent Door Controls 27 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual AUTO MANUAL SHUTTER MANUAL CONTROL FRONT REAR Manual Shutter Controls On level 3 floor hanger beams will be found the manual shutter controls These are primarily designed for emergency closure when remote control is lost and a potential hazard exists such as rain or snow approaching Here too the software control is overridden when this switch is enabled If power to the enclosure is lost the manual controls will still close the shutter and vent doors by means of the Un interruptible Power Supply UPS on level 1 28 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space
91. ing into position it should show Telescope Slewing and when it reaches the specified position and begins tracking it should change to Telescope Tracking Ifan error occurs the message will change to Telescope Error 9 Adjust the pointing if desired Position offsets can be entered to adjust telescope pointing Click on the Controller button in the Observe Star dialog to bring up the Bias Controller dialog box shown in Figure 6 17 This allows the telescope position to be adjusted in small increments around the current track Offsets can be applied in one of two orientations Azimuth Elevation left and right offsets correspond directly to azimuth while up and down offsets correspond to elevation Across Along Track offsets are made with respect to the direction of motion of the stars In this case left and right offsets correspond to positive and negative declination while up and down offsets correspond to decreasing or increasing right ascension Note that changing the orientation will clear any offset already applied If offsets are being remembered see Operations Remember Offsets then the Bias Controller dialog will start at the last offset that was used while tracking the previous star 106 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EO
92. isclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Orientation listbox This determines the orientation in which to apply offsets Offsets can be applied in one of two orientations Azimuth Elevation left and right offsets correspond directly to azimuth while up and down offsets correspond to elevation Across Along Track offsets are made with respect to the direction of motion of tracking Left and right offsets are perpendicular to the current direction of the track as looking out from the telescope while up and down offsets are along the direction of the track up moves in the direction of the track and down moves in the opposite direction If the telescope is stationary then these correspond directly with Azimuth Elevation Note that changing the orientation will clear any offset already applied Step buttons These eight buttons each produce a single step in the corresponding cardinal direction Stepsize listbox This controls the size of each step in offset It also controls the units used in the digital display of the current offset on the left side of the dialog Reset Bias button Pressing this button resets the offset to 0 0 Mark button This button is used to mark the current offset For some applications this may have special meaning such as recording the current telescope position when used in StarCal However for Telescope VCP
93. it simply colors the current offset red in the graphical display The right side of the dialog is used to enter offset rates which are continuously varying offsets The controls in this section operate in much the same way as the offset controls in the middle of the dialog Note that offset rates are added to any constant offset that is currently applied The Hide button at the bottom right of the dialog closes the dialog This does not affect the currently applied offset This dialog also provides keyboard support lt Up arrow gt step up lt Down arrow gt step down lt Left arrow step left 60 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 lt Right arrow lt Home gt lt End gt lt PageUp gt lt PageDn gt lt Ctrl Home gt lt Insert gt Delete lt Space gt lt Enter lt Escape gt lt Ctrl PageUp gt lt Ctrl PageDnm gt lt Ctrl Left arrow gt lt Ctrl Right arrow lt Ctrl Up arrow gt lt Ctrl Down arrow gt lt Shift Up arrow gt lt Shift Down arrow lt Shift Left arrow lt Shift Right arrow gt lt Shift Home gt lt Shift End gt lt Shift PageUp gt lt Shift PageDm EOS Space Systems Pty Ltd User Manual step right step up and left step down a
94. ith can be found in Utilities StarCal Data You may wish to locate these files on a file server so that if they are updated all StarCals running on the system use the updated settings The only file needing updating is eop dat containing the earth orientation parameters They are available on the internet See 10 1 1 Earth Orientation To put the StarCal files on a file server copy the folder Data to a fileserver perhaps fileserver EOS StarCal Data Then change the corresponding entries in StarCal dmx in the folder ConfigServer ConfigFiles Lick 50 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 7 TELESCOPE OPERATING INSTRUCTIONS This section provides an overview of how to start the control software and shut it down 7 1 Starting the Servers The control software consists of a number of components which must be started in the following order on the computer with a fixed IP address 1 Dispatcher Run C EOS Servers Dispatcher Dispatcher exe This component provides inter application messaging between clients and servers 2 Config Server Run Cc EBOS Servers ConfigServer ConfigServer exe This component provides configuration information for the other applications
95. k an elevation of 10 with zero velocity acceleration and jerk and a range of zero with zero velocity acceleration and jerk 8 4 2 Log Files The Telescope VCP data logging function see 5 2 2 1 Top Button Group generates text files containing data in a simple format Each line is a single record and fields in each record are separated by lt Tab gt characters The first line identifies the contents of each field The actual fields recorded in a log file depend on the options selected in the Data Logging dialog see Figure 5 5 Some examples are Date Time This is the actual date and time UTC at which the data sample was taken in the format mm dd yyyy hh mm ss ssssss The time is in 24 hour format and is accurate to 1 microsecond 78 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Seconds In Day This single number to six decimal places represents the time of day of the sample or the number of seconds elapsed since midnight at the start of the current day accurate to 1 microsecond This is useful as an X axis value for spacing irregular data samples out correctly in plots as Excel cannot easily interpret the date time column Commanded Track Position Az This is the comman
96. le Device Browser causes heavy CPU load when displaying Telescope Server state If the Device Browser is running and is displaying the Telescope Server state this may heavily load the CPU to the point where the computer will become unresponsive 130 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Incorrect startup of servers causes errors If the server applications are started up in the wrong order or if an attempt is made to start them a second time then various errors such as assertion failure will be reported in a dialog box If this happens shut down all the clients and servers and start from the beginning If a client application is started and the requisite servers are not yet running then the client will report a Runtime Error and fail to start Each client application at each location may be run simultaneously with other copies on the network whereas there can only be one copy of each server at each location operating simultaneously e g Only one TelecopeServer Lick can operate at once but multiple TelescopeVCP Lick Exclusive control of telescope is not enforced Normally only one client of the Telescope Server StarCal Telescope VCP can be in control of the telescope at
97. lect the star and then shrink the window back to its original size 5 Command the telescope to start tracking Choose Operations Observe Selected Star A track will be generated for the selected star and sent to Telescope Server and the Observe Star dialog box will appear Figure 6 9 There is no limit to how long the star may be tracked StarCal will prompt the user if it is not connected to or does not have control of the telescope Be careful not to choose either of the first two options in this menu Operations Observe Stars or Operations Add New Observed Star These will proceed to select and observe a star in the next region in the observation set This mistake is easy to correct by clicking the Cancel button in the Make Star Observations dialog box which is larger than the Observe Star dialog box and then choosing the correct menu option 6 Alternatively track a star by catalog number Rather than choosing a star from the sky map the telescope can be instructed to track a specific star from the catalog by specifying its identification number Choose Operations Observe Star by Catalog ID and enter the catalog identification number of the desired star A track will then be generated and sent to Telescope Server and the Observe Star dialog box will appear Figure 6 9 There is no limit to how long the position may be tracked StarCal will prompt the user if it is not connected to or does not have control
98. lescope Menu Telescope Connect Telescope Establish a connection to a telescope at a specified site This menu command brings up the Connect Telescope dialog box Figure 6 3 which allows the user to choose to which telescope site to connect Station Name should already be selected as the site when the dialog appears see the example image below This dialog is similar to the Select Telescope dialog box in Telescope VCP see Figure 5 6 except that no password is required since StarCal does not provide access to low level telescope functions Connect Telescope Eg Cancel Location Name Figure 6 3 The Connect Telescope dialog 84 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope Disconnect Telescope Close an existing connection to a telescope This command is usually only necessary prior to connecting to a different telescope Note that other client applications can connect to the telescope while StarCal is connected Telescope Take Telescope Control Request control of the telescope so that StarCal can track stars Only one client application can be in control of the telescope so while StarCal is in control other applications such as Telescope VCP will be unable to
99. llback function when data arrives The data from devices is provided in a format known as DML DML allows numerical and textual data to be logically organized in a tree like structure of named fields For descriptions of all the commands that can be issued to the Telescope and other servers by means of the API see the header file named similarly to the following example Client Library eosLibBeijing h For an example of how to use the API see Client Test Harness To see what data structures and individual fields can be subscribed to for each device start the DeviceBrowser and click on the server s icon An example of how to get a subscription define TELESCOPEPOSITION DeviceServer Devices Telescope Attributes Position define TELESCOPEPOSITIONACTAZ DeviceServer Devices Telescope Attributes Position Pos ActTeleNormalised Az define TELESCOPEPOSITIONACTEL DeviceServer Devices Telescope Attributes Position Pos ActTeleNormalised E1 Subscribe to receive telescope data eos beijing registerTelescopePublish onTelescopePublish eos beijing subscribeTelescope TELESCOPEPOSITION 0 9 true 122 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual and
100. ller dialog 56 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Focus Control Figure 5 3 The Telescope VCP Focus Control dialog Instrument Rotator A Control e 2 0 00000000 Figure 5 4 The Telescope VCP Instrument Rotator Control dialog 57 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual seme eee Figure 5 5 The Telescope VCP Data Logging dialog Telescope YCP Select telescope lis Fee a __ Figure 5 6 The Telescope VCP Select Telescope dialog 8 2 2 Guide to Controls This section describes the various controls available in Telescope VCP 8 2 2 1 Top Button Group A group of four buttons in a row along the top of the display provide functions as follows Connect button This displays the Select Telescope dialog box allowing the user to connect to a telescope at a specified site see Figure 5 6 This dialog box is also displayed automatically when Telescope VCP starts 58 EOS Space Systems Pty L
101. m an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 12 LOG VIEWER Each EOS application writes diagnostic information to a log file e1 wm Log files are named in the format YYYYMMDD Application Location NN elf Log files contain a series of sequentially reported events A new file is started each time a first log entry is recorded each day or whenever the current file exceeds 5 Mb in which case the number NN is advanced by 1 They are placed in a folder called Logs in the same folder as the application executable For each event the date and time is recorded accurate to within about 15 ms using the application s PC clock Each log entry can be recorded as an exception a state change a diagnostic or a normal event The server which made the entry is recorded along with the text of the entry itself Log files can be viewed with the Log Viewer The Log Viewer can also be used to search the list of log entries display or hide all log entries sharing specified characteristics or export the log file as an ASCII file To view a log file open Log Viewer and drag the log file onto the Log Viewer window There is also a LogServer which collects log events from all servers and writes these to a log file in a similar manner to each EOS application These system wide logs are located in EOS Servers LogServer Logs Due to the complexity of the EOS applications it is difficul
102. main window for Telescope VCP while Figures 5 2 5 6 show the other dialogs available from within the application 54 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope Virtual Control Panel Xinglong bonnet boo Bice Contol Helo Telescope x Commanded absoute 1 Postion Telescope E factual x fabsotte x Postion EEA ow sa Servo Control Not Active Figure 5 1 The Telescope VCP main window 55 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 Bias Controller Display Azimuth 0 0 arcsec Elevation 0 0 arcsec F1Qacsec 4 gt Centre Clear User Manual Position Bias Azimuth E levation fo 25 arc seconds Reset Bias Mark Position Bias Rate Azimuth 0 000 asec s Elevation 0 000 asec s Azimuth Elevation z 0 001 arcsec sec x Reset Bias Rate EOS Space Systems Pty Ltd Hide Figure 5 2 The Telescope VCP Bias Contro
103. marked Azimuth Compensation for Rotator A Change in azimuth arcsec required to compensate for rotation angle degrees Enabled YES Segment 1 Rotator A 180 Azimuth 35 5 Segment 2 Rotator A 170 Azimuth 34 5 Segment 3 Rotator A 160 Azimuth 32 5 Segment 4 Rotator A 150 Azimuth 30 6 Segment 5 Rotator A 140 Azimuth 28 2 Segment 6 Rotator A 130 Azimuth 25 3 Segment 7 Rotator A 120 Azimuth 22 Segment 8 RotatorA 110 Azimuth 18 3 Segment 9 Rotator A 100 Azimuth 15 Segment 10 Rotator A 90 Azimuth 11 8 Segment 11 Rotator A 80 Azimuth 8 8 Segment 12 RotatorA 70 Azimuth 6 w Il Segment Rotator A 60 Azimuth 4 Segment 14 Rotator A 50 Azimuth 2 u Il Segment Rotator A 40 Azimuth 1 Segment 16 Rotator A 30 Azimuth 0 2 N Il Segment Rotator A 20 Azimuth 0 2 Segment 18 Rotator A 10 Azimuth 0 Segment 19 Rotator A 0 Azimuth 0 4 Segment 20 Rotator A 10 Azimuth 1 Segment 21 Rotator A 20 Azimuth 2 113 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 Segment 22 Rota Segment 23 Rota Segment 24 Segment 25 Segment 26 Segment 27 Segment 28 Segment 29 Segme
104. ms Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 m Coefficients No Value Used Name 01 4710 3383 Tf Azimuth Encoder Offset 02 1701 9909 Y Elevation Encoder Offset __Heb 03 13 2975 Y x Axis Tilt 04 54 9841 Y Y Axis Tilt 05 229 2269 Tf Transverse Misalignment 06 27 7437 N 42 El Non orthogonality 07 8 3854 Y Sinfazimuth in Azimuth 08 13 7450 Hi Cos azimuth in Azimuth og 426 4838 if Sin elevation in Elevation 10 730 6435 Y Cos elevation in Elevation 11 21 0002 if Flexure Tan Zenith Distance 12 2 4448 Yi Azimuth Encoder Scale 13 5034 2501 Y Elevation Encoder Scale 14 0 0000 Sin 2 azimuth in Azimuth 15 0 0000 Cos 2 azimuth in Azimuth 16 0 0000 Sin azimuth in Elevation 7 0 0000 Cos azimuth in Elevation 18 0 0000 El Sin az in Elevation 19 0 0000 El Cos az in Elevation 20 0 0000 Sin 2 4z Cos El in Azimuth 21 0 0000 Cos 2 4z Cos El in Azimuth 22 0 0000 Sin 2 Az in Elevation 23 0 0000 Cos 2 A4z2 in Elevation 24 0 0000 Sin 3 Az Cos El in Azimuth 25 0 0000 Cos 3 Az Cos El in Azimuth 26 0 0000 Sin 3 Az in Elevation 27 0 0000 Cos 3 4z in Elevation 28 0 0000 Sin 4 Az Cos El in Azimuth 29 0 0000 Cos 4 Az Cos El in Azimuth 30 0 0000 Sin 4 Az in Elevation 31 0 0000 Cos 4 A4z in Elevation 32 0 0000 Sin 5 Az Cos E in Azimuth a 0 0000 Cos 5 4z Cos El in Azimuth 34 0 0000 Sin 5 Az in Elevatio
105. n In order to provide accurate tracking of celestial coordinates the high level software must be able to correct for rotation of the Earth s pole Information regarding this rotation is found in the Earth Orientation Parameters file for StarCal This file contains recent measurements of polar rotation as well as extrapolated predictions covering the next few months The file should be updated regularly It can be found at ftp maia usno navy mil ser7 mark3 out It is updated weekly and should be retrieved at least once a month to provide the most accurate tracking see the section above Installing StarCal 14 2 Troubleshooting Troubleshooting problems with the system involves first determining the cause of the problem and then finding a solution Some problems and their solutions will be familiar to the long time operator while others may never have occurred before Typical causes include operator errors software bugs and mechanical faults Solving a problem usually involves simply removing the cause of the error In extreme cases it may require redesign of a component Occasionally the problem goes away when the operation is attempted a second time This last type of problem where the symptoms are intermittent is the most difficult to diagnose and correct Whenever a problem occurs it is always a good idea to check the event log on the affected machine using Log Viewer In the case of telescope problems most errors will be logged t
106. n Eal 0 0000 Cos 5 Az in Elevation Figure 6 5 The Telescope Mount Model Parameters dialog 9 2 2 3 Operations Menu User Manual This menu provides commands for carrying out various actions involving the telescope See 6 3 Operations for examples Operations Observe Stars Automatically select a star from the next observation region and track it Observation regions are part of an observation sequence Stars are selected according to criteria specified when the observation sequence was created When this menu item is selected the telescope will start to move to the selected star and the Make Star Observations dialog will appear Figure 6 6 This dialog lists details about the region and the selected star and provides buttons allowing the user to bring up the Bias Controller dialog Figure 6 17 accept the marked position skip the region or cancel tracking EOS Space Systems Pty Ltd 86 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual The telescope will continue to track the star indefinitely If the star moves outside the position range of the telescope it will stop at the limit and wait for the star to re emerge The application must be in control of the telescope and have created or loade
107. n herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 4 2 Telescope 4 2 1 Description 4 2 2 PMAC 4 3 Software 4 3 1 Description 4 3 2 Control System Core Servers 4 3 2 1 Dispatcher 4 3 2 2 Config Server 4 3 2 3 System State Router 4 3 2 4 Log Server 4 3 2 5 Authentication Server 4 3 2 6 Resource Server 4 3 2 7 System Manager 4 3 2 8 Machine Manager 4 3 3 Basic Observatory Level Servers 4 3 3 1 CANServerProxy 4 3 3 2 _CANServerCooling 4 3 3 3 CANServerControls 4 3 3 4 DomeServer 4 3 3 5 TelescopeServer 4 3 4 Additional Servers 23 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 4 3 4 1 PeopleSafe Server 4 3 5 Client Applications 4 3 5 1 4 3 5 2 4 3 5 3 4 3 5 4 4 3 5 5 4 3 5 6 System Management Interface Dome User Interface StarCal User Management Interface Resource Management Interface Software API EOS Space Systems Pty Ltd User Manual 24 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Sp
108. n is the Commanded position minus the Actual position Just after a new setting is entered this shows how far the mechanism has left to move Once the actuators have stabilized at the new position it gives an indication of the following error Encoder values are also given The three actuators do not correspond directly to the three controllable axes but instead work together in complex ways to provide the required motion The data displayed under Encoder A Encoder B and Encoder C indicate the raw positions of the three actuators in encoder counts The display positions are updated whenever the position information on the main window is updated or when the Refresh button on this dialog is pressed This button is identical in operation to the Refresh button on the main window see 5 2 2 4 Display Group The status of the focus mechanism is shown by Focus Status The box changes color to give a quick indication of the status while a message is displayed next to the box providing more information Green In Position The mirror has reached the last commanded position Yellow Focussing The mirror is moving to the last commanded position Yellow Inactive The servo loop for the mirror is currently open This is usually the state which the focus is in when the Telescope Server application first starts up and means the telescope is not currently tracking Red Instrument Fault The Telescope Server application has detected an in
109. nd LogServer into C EOS 4 Create a folder C EOS Utilities 5 From the Utilities folder copy the folders Log viewer DeviceBrowser and DML File Editor into C EOS Utilities We suggest creating shortcuts to the servers displayed in the order Dispatcher ConfigServer AlertServer and LogServer 48 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 6 Now test the servers Start each one in the order given above then start the DeviceBrowser You should see Dispatcher ConfigServer and AlertServer in green Close the servers and the DeviceBrowser 6 5 2 Setting up the Telescope Control Computer 1 Ensure the Telescope Control Computer can ping the dispatcher computer in this example 192 168 0 2 2 Copy the CommonLocalConfig dmx file you changed on the dispatcher computer in to C Windows 3 From Configuration folder copy Keystone ini in to C Windows 4 Create a folder C EOS Servers if it does not already exist 5 From the Servers folder copy the folders TelescopeServer TrussTemperatureServer and DIOServer into C EOS You may want to backup and remove any existing folders in C EOS You may find it useful to have StarCal and TelescopeVCP on
110. nd left step up and right step down and right Reset Bias Centre Clear Mark Mark Close decrement orientation increment orientation decrement display radius increment display radius decrement step size increment step size rate up rate down rate left rate right rate up and left rate down and left rate up and right rate down and right 61 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual lt Ctrl PageUp decrement orientation lt Shift Ctrl PageDn gt increment rate orientation lt Shift Ctrl Up arrow decrement rate step size lt Shift Ctrl Down arrow gt increment rate step size lt Shift Ctrl Home gt Reset Bias Rate Biasing can only be done if Telescope VCP has control of the telescope The telescope position can be biased when it is idle and even when it is not operating in which case bias commands will be ignored Each time a new slew or track command is sent by pressing the Go button position bias will be reset to zero In Telescope VCP the Mark button does nothing except highlight the current bias point in red In other applications it may be used to signal an event or to take a data sample Help button This displays a simple About box providing the version and date of the application 8 2 2
111. ndition whereby the telescope exceeds all of its azimuth limit switches and the enclosure azimuth limits actuate on the cable wrap To allow the enclosure to recover in the opposite direction the key must be turned WARNING this is a hazardous operation which occurs near a position which can destroy the cable wrap The Azimuth Enable Override on the right photo may sometimes be located between the azimuth drive systems and is used during site engineering tests where full software control is undesirable Be very careful using this system as it bypasses several safety systems in software ESTOP of the enclosure sends a comparable signal to the telescope enclosure causing a telescope ESTOP condition also This condition is reset separately from the enclosure condition 12 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 3 SYSTEM OPERATION WARNINGS 3 1 General Warnings The observatory is a complex system in which any of a number of things can go wrong or behave unexpectedly While all efforts have been made to ensure safe and correct operation of the system it is impossible to completely predict or prevent damage or injury resulting from accident or misuse Therefore Be careful at all times w
112. ner If your attempt is successful then you will become the resource owner and the previous owner will lose their ability to execute the corresponding resource managed commands If your attempt is not successful then you will be presented with the following dialog box fos Try to acquire resources forcibly 2 x Alice failed to acquire the resources at DomeServer for DeviceServer Devices S afety Commands at Simulator Do you want to try acquire resources forcibly from other users Yes No Cancel As described above it possible for a user of higher Rank to take resources from a user of lower Rank Should a user of higher rank take a resource from you then you will be presented with the following dialog box fos Dome Client Warning Message 2 x Some other users with higher privileges took the resources from you Please try to acquire the resources back later 35 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 5 4 2 3 2 Emergency Controls All control panels within the Dome Client feature the following emergency command buttons in the lower left hand corner of the window e Set E Stop e Set E Close e Set E Secure When these commands are executed the corresponding Output St
113. nfiguration Do not add remove or modify any system components It is important to consider the operation of the entire system when making any changes to the configuration of any part of it The servo systems have been carefully tuned and are very sensitive to changes If the system becomes unstable it can oscillate leading quickly to damage to the drive mechanisms Changes in OTA balance can also adversely affect tracking performance in various ways which may not be immediately apparent Many of the components have been placed very precisely to provide optimum performance and not obstruct telescope motion The positioning and alignment of the optical components are particularly important If you wish to add remove or change any of the hardware contact authorized engineering support personnel to discuss the proposed change and any possible risks to the system 3 6 Precautions Before Moving Telescope Axes Some precautions should be taken before attempting to move the telescope Check for telescope obstructions Check that the telescope axes will move freely around in their travel and not catch on or scrape any equipment which may have been left lying around This is a common problem during testing and maintenance when several people have been working on the telescope In particular look for e items near the telescope e equipment loosely or temporarily attached to the telescope these may come free as the telescope
114. nt 30 Segment 31 Segment 32 Segment 33 Segment 34 Segment 35 Segment 36 Segment 37 EOS Space Systems Pty Ltd Rota Rota Rota Rota Rota Rota Rota Rota Rota Rota Rota Rota Rota Rota or A 30 Azimuth or A 40 Azimuth or A 50 Azimuth or A 60 Azimuth or A 70 Azimuth or A 80 Azimuth or A 90 Azimuth orA orA orA orA orA orA orA orA orA 00 Azimut 10 Azimut 20 Azimut 30 Azimut 40 Azimut 50 Azimut 60 Azimut 70 Azimut 80 Azimut 6 9 3 12 3 15 3 18 5 21 8 24 5 36 3 36 3 35 8 User Manual 114 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 Elevation Compensation for Rotator A Change in elevation arcsec required to compensate for rotation angle degrees Enabled YES Segment 1 Rotator A 180 Elevation 10 8 Segment 2 Rotator A 170 Elevation 13 Segment 3 Rotator A 160 Elevation 16 Segment 4 Rotator A 150 Elevation 18 3 Segment 5 Rotator A 140 Elevation 20 3 Segment 6 Rotator A 130 Elevation 22 3 Segment 7 Rotator A 120 Elevation 23 5 Segment 8 Rotator A 110 Elevation 23 8 Segment 9 Rotator A 100 Elevation 23 8
115. nt applications such as StarCal or instances of Telescope VCP running on other computers can be attached to the telescope at the same time but only one can be in control 8 1 Quick Start Guide Run C EOS Utilities TelescopeVCP TelescopeVCP exe Telescope VCP will ask for a password to connect to the NAOC telescope enter vcpuser and click OK The polar plot should display an icon for the telescope at 0 degrees azimuth and 0 degrees elevation Depending on the time of day the Sun may also be visible Click the Control radio button in the top left corner of the Telescope VCP Below the Control radio button are two edit boxes AZ and EL Enter 90 and 0 in these two boxes respectively to specify a commanded position of 90 degrees azimuth and 0 degrees elevation due East and then click the Go button The telescope icon should begin to move as the telescope executes its homing procedure After about 20 seconds it will reset to its starting position and then start moving to the right edge of the polar plot which represents the eastern horizon 8 2 Application Structure 8 2 1 Windows The application is centered around the main display window which contains numerous controls separated into functional blocks From here smaller dialog boxes can be opened to control the Secondary Focus mechanism the Instrument Rotators and Data Logging or to reconnect to the telescope after the Telescope Server has been restarted Figure 5 1 shows the
116. nual To calibrate a derotator use a star which involves minimal axis movement near the celestial pole this minimizes any contribution of errors from mount model rms variations across the sky 10 1 2 Procedure In the file Telescope ini find the enabling statement for the derotator in use Set ENABLED NO This disables pointing correction and allows true measurement of the misalignment to be corrected Restart the Telescope server to disable the instrument derotator being calibrated It will no longer track stars or home with other axes and will respond only to TelescopeVCP commands Start TelescopeVCP and set to Monitor mode Use TelescopeVCP to set the instrument derotator to 180 degrees position by using the Inst Rotator A or the Inst Rotator B buttons Use Starcal to point to a star A Instrument Rotator A Control x Mode Fixed a Position Cancel Orientation 0 000 deg Bias the star to a nominal position on any display used by the port instrument Record the bias for the current instrument derotator orientation 180 degrees Use TelescopeVCP to increment the derotator position by 10 degrees Bias the star back to the display reference position Record biases next to the derotator position forming a table of values as shown in the example below 116 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be c
117. o the building while power is applied to systems without the most careful supervision and knowledge of safety features 2 2 Crush Points The following parts of the enclosure involve mechanical hazard unless electrically isolated Front door this door is steel and strong winds create a potential hazard L1 floor gap this gap separates a moving mass of over 20 tonnes from the static part of the dome Do not reach into the gap L2 azimuth support bogeys although hard to reach the support wheels can be reached with fingers Lateral guide rollers these too can be reached with fingers despite being hidden Vent doors the momentum of these doors when closing and the nature of the seals make this a potential hazard during maintenance operations Shutter the aperture is accessible via the lower sill and represents a crush hazard whenever the shutters are moving closed Exposed gaps between moving and static parts may also be dangerous Night operations stair wells and trip hazards from equipment on floors must be considered when performing night maintenance such as telescope collimations The Telescope Optical Tube assembly can move without warning although no azimuth hazard exists with a co rotating enclosure Hard hats are advisable Mains voltages within cabinets only qualified personnel should make adjustments or repairs 10 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space S
118. o the event log on the TCC Most errors that occur are logged but not all are displayed to the user Many of the errors are cryptic and can only be deciphered by suitably trained engineering support personnel However over time log files take up disk space Regularly remove old log files from the Telescope Control Computer If the problem is unusual cannot be solved simply by repeating the offending command or occurs frequently report it as soon as possible to authorized engineering support personnel describing the symptoms and what operation was being performed at the time and identifying the cause if you can 124 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual If you can t see the reason for the problem try the operation again or if necessary restart the system but watch carefully for any signs of further problems If problems persist contact authorized engineering support personnel Some common problems and their resolutions are described below This list is by no means complete Refer also to the section Known Issues which describes some known problems with the system If after consulting these lists and checking the event log you cannot overcome a problem seek technical assistance 14 2
119. of the telescope 7 Alternatively track a celestial coordinate Instead of tracking one of the stars in the sky map the telescope can be instructed to track a specific position on the celestial sphere Choose Operations Observe RA Dec The Sky Coordinates dialog will appear Figure 6 10 allowing the user to enter right ascension R A declination dec and equinox Parallax and proper motion can also be specified if desired A track will then be generated and sent to Telescope Server and the Observe Star dialog box will appear Figure 6 9 showing the celestial coordinates instead of the star magnitude and color normally shown There is no limit to how long the position may be tracked 105 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual StarCal will prompt the user if it is not connected to or does not have control of the telescope 8 Wait for the telescope to reach the specified position The telescope state is shown on the left side of the status bar at the bottom of the main window If the telescope is not currently operating when the command is issued then it will automatically go through its power up and homing sequence and the status bar will display Telescope Homing While mov
120. on choose Operations Observe Stars A star matching the selection criteria magnitude elevation brightest or closest to center will be selected the telescope will begin moving to the star and the Make Star Observations dialog box will appear showing the location of the region and information identifying the selected star Figure 6 6 Alternatively to manually select a star to be added to the observation sequence click on a star on the Sky Map page and choose Operations Add New Observed Star A new region will be created with the selected star at its center and will be inserted into the observation sequence If there is ambiguity in how the telescope can track the star the user will be prompted to select the appropriate orientation in the Select Telescope Orientation dialog box Figure 6 7 The telescope will then begin moving to the star and the Make Star Observations 109 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual dialog box will appear showing the location of the region and information identifying the selected star Figure 6 6 Be careful not to choose Operations Observe Selected Star This will proceed to track the star currently selected in the sky map but marking this star
121. on into this state From this state all software commands will be rejected the only way to control the device is via the manual inputs 4 1 3 2 4 E Close When in this state the device will close itself All software commands will be rejected This state mode is latched in that a reset command is required to clear this state even if the input condition is cleared 20 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 4 1 3 2 5 Personnel Safe This state is to offer a user who is physically inside the enclosure the confidence that the only movement that will occur will do so from an action from someone inside the enclosure All autonomous behavior close due to Mains power failure for example will be prevented in this mode In this mode all software commands will operate as per normal however the higher level software CAN and Ice StorM II Servers will use an IP address filter to only allow commands from pre configured locations More information will be forthcoming soon 4 1 3 2 6 Manual Software This is a state to allow unsafe movement of the devices via the software interface typically this will allow jog type commands that will ignore limit switches etc It is expected that th
122. operty of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope Server at the site is not running Start up the Telescope Server application e The site name was misspelt The computer you are using is not directly connected to the computer running Telescope Server e The network is not operating e You are running an incompatible version of StarCal When connected the Sky Map page will display the stars currently visible from that telescope if the Sky Map Current Time menu option is selected This is selected by default when StarCal starts If StarCal is subsequently shut down it will automatically release control of and disconnect from the telescope Note that the Telescope Disconnect Telescope menu command can be used to disconnect from the telescope without shutting down StarCal 9 3 3 Displaying the Current Sky Map 1 Connect to a telescope 2 Display the Sky Map page Click on the Sky Map tab at the bottom of the main window or choose Window Sky Map 3 Select the Current Time display option Choose Sky Map Current Time or select the Current Time button on the toolbar The main window will show the stars currently visible above the 0 horizon using the latitude longitude and clock of the connected telescope If StarCal is not connected to a telescope then
123. opied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Azimuth Elevation Adjusted Adjusted Rotator Azimuth Elevation Bias Bias Azimuth Elevation Angle Bias Bias Normalised Normalised Bias Bias Degrees Arcsec Arcsec Arcsec Arcsec arcsec arcsec 180 39 5 53 35 5 10 8 35 5 10 8 170 38 5 50 8 34 5 13 34 5 13 160 36 48 3 32 15 5 32 5 16 150 34 3 45 5 30 3 18 3 30 6 18 3 140 31 8 43 5 27 8 20 3 28 2 20 3 130 29 3 41 5 25 3 22 3 25 3 22 3 120 26 41 22 22 8 22 23 5 110 22 3 40 18 3 23 8 18 3 23 8 100 19 39 8 15 24 15 23 8 90 15 8 40 8 11 8 23 11 8 23 80 12 8 42 3 8 8 21 5 8 8 21 5 70 10 44 5 6 19 3 6 19 3 60 8 45 8 4 18 4 18 50 6 48 5 2 15 3 2 15 3 40 5 51 5 1 12 3 1 12 3 30 3 3 54 3 0 7 9 5 0 2 9 5 20 3 8 57 8 0 2 6 0 2 6 10 4 60 8 0 3 0 3 0 4 63 8 0 0 0 4 0 10 4 66 8 0 3 1 3 20 6 69 5 2 5 7 2 5 7 30 8 72 5 4 8 7 4 8 2 40 10 74 6 10 2 6 10 2 50 13 3 75 8 9 3 12 9 3 12 60 16 3 76 5 12 3 12 7 12 3 12 7 70 19 3 77 15 3 13 2 15 3 13 6 80 22 5 77 5 18 5 13 7 18 5 13 7 90 25 8 77 5 21 8 13 7 21 8 13 7 100 28 5 77 24 5 13 2 24 5 13 2 110 31 75 5 27 11 7 27 11 7 120 34 73 3 30 9 5 30 9 5 130 36 70 8 32 7 32 7 5 140 37 8 69 33 8 5 2 33 8 5 2 150 39 65 5 35 1 7 35 2 2 160 40 3 62 8 36 3 1 36 3 1 1
124. ote that while it is possible for any user to set an emergency stop typically only the owner of the relevant resources can clear this condition Get data commands typically do not alter the observable behaviour of devices and so are not usually subject to Resource Management As an example of acquiring resources consider the basic Safety control panel 32 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Zoe Dome Client Alice 15 x File Edit Help eee ems Safety Dome Components Software Inputs Software E Stop J Set Clear ay Shutters E Stop 1 Button J aay Front Shutter E Stop 2 Button J ay Rear Shutter n E Stop 3 Button J ry Azimuth J E Stop 4 Button J Paa Vent Doors E Stop 5 Button J t pa Dooi E Stop 6 Button J vent Door 2 Software E Close 2 Set Clear Vent Door 3 E Close Button J Vent Door 4 Software E Secure J Set Clear Cooling Systems UPS Input 2 pa General Digital Outputs Outputs E Secure Hold Off E Wade E Stop State J Reset 65555 seconds Software Command Output State E Close State J Reset E Secure Hold Off Set ESecure J Set EStop J E Secure State J Reset e Faults Set EClose 2 No Communications
125. ount model parameters to calculate and which regions to use or discard The results of the operation are placed in the Mount Model page of the main window and replace any existing mount model Generation of a new mount model normally takes a second or less but in some cases it may take up to 10 seconds or it may fail to converge to a solution at all If this happens try removing some of the parameters from the solution StarCal does not have to be in control of the telescope or even attached to it in order to use this command However an observation sequence must be loaded Mount models based on previously collected observation data can be generated and analyzed off line 88 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Mount Model Parameters x r Coefficients Observations o Azimuth Encoder Offset mee IV Elevation Encoder Offset Cancel M X Axis Tilt IV Y Axis Tilt Help Sin azimuth in Azimuth Cos azimuth in Azimuth Sin elevation in Elevation Cos elevation in Elevation Flexure Tan Zenith Distance Azimuth Encoder Scale Elevation Encoder Scale Sin 2 azimuth in Azimuth Cos 2 azimuth in Azimuth Sin azimuth in Elevation r r F r r r r M M Vv I Cosfazimuth in
126. p Menu 9 2 3 Toolbar 9 2 4 Information Pages User Manual 54 54 54 54 58 58 62 62 63 63 64 67 2B 74 75 75 75 76 76 76 76 78 81 81 81 81 82 82 84 86 92 97 98 98 98 99 IceStorm Enclosure Series 2 9 2 4 1 Sky Map Page 9 2 4 2 Observations Page 9 2 4 3 Mount Model Page 9 2 4 4 Catalog Page 9 2 5 Status Bar 9 2 6 Error Messages 9 3 Starcal Tracking Operations 9 3 1 Starting the Application 9 3 2 Connecting to a Telescope 9 3 3 Displaying the Current Sky Map 9 3 4 Tracking a Star 9 3 5 Star Calibrations 9 3 6 Generating a Mount Model 10 COMMON ENGINEERING PROCEDURES 10 1 Instrument Derotator Calibration 10 1 1 Introduction 10 1 2 Procedure 10 2 Collimated Position Setting Default Focus 11 DEVICE BROWSER 12 LOG VIEWER 13 APPLICATION PROGRAMMING INTERFACE 14 FAULTS AND MAINTENANCE 14 1 Software Maintenance 14 1 1 Earth Orientation 14 2 Troubleshooting 14 2 1 Common Problems 14 2 2 Using Log Viewer to Diagnose Problems 14 3 Telescope Error Messages 14 3 1 Dialog Errors 14 3 2 Logged Errors 14 4 Known Issues 15 APPENDIX 1 TELESCOPE HARDWARE USER MANUAL User Manual 99 100 100 101 101 102 103 103 103 104 104 107 111 113 113 113 116 118 120 121 122 124 124 124 124 125 126 127 127 127 130 132 IceStorm Enclosure Series 2 User Manual IceStorm Enclosure series 2 User Manual 1 INTRODUCT
127. pe Server or Telescope VCP applications or the occurrence of a network error The indicated number should be reported when seeking technical support The status indicator is also used to display various error messages generated by Telescope VCP Most of these are self explanatory However these messages are often obliterated by status indicators for the Telescope Server A future release of the software may display these messages in a different place Reset from Error button This button can be used to clear a fault condition red status indicator in the Telescope Server and to clear the status indicator Audible Alarm checkbox Whenever Telescope VCP displays a red status it will beep to provide an audible warning This feature can be turned off by clearing this checkbox Line 1 and Line 2 These two lines display position information for the telescope Each line consists of a series of four listboxes which select the type of information to display and two edit 70 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual boxes labeled AZ and EL which display the selected information plus a Units indicator which displays the measurement units Both lines can display the same information Two lines are pro
128. r even attached to it in order to use this command However an observation sequence must be loaded and a mount model must have been generated Polar Plot Figure 6 11 The Polar Plot graph showing post fit residuals 92 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Graphs Azimuth Residuals vs Azimuth This displays a graph showing the azimuth residual errors plotted against the azimuth axis Figure 6 12 The menu item leads to three sub items each displaying a different set of the data The Pre Fit menu item will display only the pre fit residuals This may be useful if it is difficult to distinguish pre fit residuals from post fit residuals when both are displayed on the same plot The Post Fit menu item will display only the post fit residuals This may be useful to get additional detail since pre fit residuals are normally larger and cause the axes to be scaled accordingly when both pre fit and post fit residuals are displayed on the same plot The Pre amp Post menu item will display both pre fit and post fit residuals on the same plot This is useful as a measure of the effect of the new mount model StarCal does not have to be in control of the telescope or even attached to it
129. r the filename before saving The lt Ctrl S gt key combination can be used as a shortcut to this menu item File Save As Like File Save but always prompts for a filename before saving This menu item can be used to save the data to a file with a different name File Save Report Create a text file of the contents displayed by the Mount Model page in the main window 83 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual File Save TPOINT Data Create a TPOINT compatible text file of the mount model data This file can be imported into the TPOINT program a popular third party package for analysis of the pointing data File Print This function is not implemented in the current release of the software File Print Setup This function is not implemented in the current release of the software File Load Catalog Select a new star catalog to load The default catalog is the FK5 Fundamental Katalog 5th edition File Exit Quit StarCal after asking for confirmation from the user The lt Alt F4 gt key combination can be used as a shortcut to this menu item and the close button X in the top right corner of the window can also be used to exit the application 9 2 2 2 Te
130. rCal can appear in several different forms in a dialog displayed to the user displayed in the status bar at the bottom of the main window see 6 2 5 Status Bar or as an 102 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual error event in the system event log Errors recorded in the system event log are usually self explanatory 9 3 Starcal Tracking Operations This section describes how to perform some typical operations using StarCal 9 3 1 Starting the Application StarCal can be run on any computer on the network The Dispatcher Config Server Alerts Server and Log Server must be running in order to run StarCal but depending on what is to be done it may not be necessary to connect to the Telescope Server application In the standalone configuration with no connection to the telescope previously saved observation data can be loaded and mount models can be generated and analyzed To perform operations involving the telescope requires a connection to the Telescope Server application Any other client applications such as Telescope VCP currently attached to Telescope Server can be left connected but be aware that a StarCal left unattended can suddenly cause the telescope to move or interfere with
131. re many possible causes for this The most common faults include an instance of Telescope already running on the computer Windows error Code number An internal Windows error occurred The Windows error code is given as number which should be quoted when seeking technical support Telescope failed to initialize This message appears if an error occurred during initialization of the telescope itself The most common causes include an error in TELESCOPE INI the PLCs are disabled the Windows driver for PMAC is not loaded the PMAC is not installed or the Timecard is not installed Telescope background processing error This message appears if the Telescope application terminates because it encountered a fatal error during routine processing The most common cause of this is disabling the PLCs or the Windows driver for the PMAC while Telescope is running 14 3 2 Logged Errors Whenever the Telescope application encounters an error it will record one or more User or Internal error events in the system event log The User errors are listed below along with their code numbers but there are too many different Internal error messages to describe them all here Generally however the text of the message and the context in which it occurs provide some clue as 127 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without
132. re several basic operations that the telescope is designed to perform This section describes these operations briefly and provides pointers to other sections in this document where detailed instructions for each operation can be found 6 2 1 Star Tracking This is the principal purpose of the telescope and involves using the telescope to track a particular star or other celestial object See 6 3 4 Tracking a Star for detailed instructions 6 2 2 Star Calibration Star calibration is a routine operation that measures and calibrates telescope mechanical pointing errors using a set of star observations as reference points This operation is performed regularly and whenever changes are made to the optical alignment See 6 3 5 Star Calibrations for detailed instructions 46 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 6 2 3 Engineering Activities A complex system such as a telescope requires regular attention by trained technical support personnel in order to remain in an operational state Tasks will include maintenance testing and problem diagnosis as well as an ongoing program of enhancing the hardware and software to extend the operational capabilities of the system Engineering level activities
133. rein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 4 1 3 Safety Systems 4 1 3 1 Node States A consistent state model is used for several of the safety critical sub systems These are e Shutters e Vent Doors e Azimuth There are conflicting safety requirements for these components One the one hand under certain conditions eg Mains power fail the enclosure needs to be able to close down autonomously while on the other any personnel working in the enclosure need to be confident that the systems will only move under their explicit command 4 1 3 2 Dome States 4 1 3 2 1 Fault The device is not able to drive control its hardware All software commands except ResolveFault are rejected when in this state 4 1 3 2 2 E Stop The Safety node has six E Stop input buttons that are located throughout the enclosure If ANY of these buttons is active or if the Software E Stop is active then the E Stop output will become active Once it has become active it will remain so until a command is issued to reset it this command will be rejected if any of the inputs physical or software are still active This state is used to stop any existing movement and to ensure no further movement will take place 4 1 3 2 3 Manual Hardware Each of the devices has a manual override key switch If this becomes active then the device will transiti
134. rms of arcseconds movement of the image at the focal plane with respect to the collimated position A positive tip moves the image up in elevation a positive tilt moves the image right clockwise in azimuth The position of each axis can be controlled by selecting a step size for the axis from the drop down listboxes at the bottom of the dialog box Each press of the or button above the step size will adjust the position by one step as shown in the edit boxes labeled New Setting The Persistent checkbox has no effect in the NAOC software The mirror position can be set even when the telescope is not operating However the mirror will not move to its commanded position until the telescope begins tracking 65 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual A variety of position information is shown in the dialog The Commanded position indicates the last focus command received by the Telescope Server application The Compensated position represents the commanded position adjusted for flexure of the telescope structure due to temperature and zenith angle The Actual position is read back from the servo control system and represents the true position of the mechanism The Difference positio
135. ror occurred during initialization of the application There are many possible causes for this The most common faults include an instance of Telescope already running on the computer Windows error Code number An internal Windows error occurred The Windows error code is given as number which should be quoted when seeking technical support Telescope failed to initialize This message appears if an error occurred during initialization of the telescope itself The most common causes include an error in TELESCOPE INI the PLCs are 128 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual disabled the Windows driver for PMAC is not loaded the PMAC is not installed or the Timecard is not installed Error in configuration file Key not found string A vital parameter was missing from TELESCOPE INI This may indicate the file has been corrupted or could not be read or a mistake was made editing the file Common editing errors include misspelling a key name deleting a key or moving a key to the wrong section It is recommended TELESCOPE INT not be hand edited Error in configuration file Key empty string A parameter in TELESCOPE INI has no value or could no
136. ry again If the error appears to be innocuous try repeating the tracking command If the problem happens again or the telescope won t start tracking press the physical Emergency Stop button and inspect the telescope to see if you can see why it stopped Perhaps the cable wrap snagged on something Perhaps the switches around the telescope base are in the wrong position Try gently moving the telescope a little by hand to see if it is stuck StarCal fails to start Find the ConfigServer and locate the folder ConfigFiles Lick StarCal dmx Look in this file to find the path where data files required by StarCal are located This may be on a fileserver or at the same path on each machine on which StarCal is installed Check the star catalogue and startup BMP are valid and that eop dat is up to date All fault indicators on TelescopeVCP are red and the failsafe fault light is lit If PEWin does not start or displays an error message check that the C drive on the Telescope Control Computer has at least 100Mb of free space Now shutdown the Telescope Control Computer and restart the Telescope Control Cabinet using the switch at its base 14 2 2 Using Log Viewer to Diagnose Problems Log Viewer is a tool for scanning the event log to look for clues to the cause of a particular problem There are two important characteristics of any error text and context The text comes from the Message part displayed by LogView and often contains
137. s error can occur if control was taken from 69 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Telescope VCP by another client This should not occur in the current release of the software for NAOC Red Instrument fault Telescope Server encountered a fatal error when processing a command Red Feature not enabled installed This error appears when attempting to use a feature which has not been enabled or installed The most common examples of this would be the secondary focus drives and the instrument rotators Red Instrument has been terminated Telescope Server is in the process of shutting down No further communications with the application will be possible Red Operation has not been implemented Telescope VCP has attempted to use a feature which has not been implemented Red Unrecognised command Telescope VCP sent a command to Telescope Server which it did not recognize This may indicate a fault in the Telescope Server or Telescope VCP applications or a network error Red Unknown Telescope result status number Telescope Server returned a status from the last command which Telescope VCP did not recognize This may indicate a fault in the Telesco
138. scope At this point check the mirror covers are open so that the telescope elevation is balanced 3 To point in a particular direction select Slew in the Move Mode group enter the azimuth and elevation into the adjacent fields and press Go The telescope should move to the specified position If necessary it will carry out a homing operation first 4 To execute a pre programmed maneuver select Track in the Move Mode group click on the Browse button choose a track file and press Go Track files see 5 4 1 Track Files can be created to run the telescope through a predefined sequence of moves This is useful for testing the performance of the system Track files can also be set up to point the telescope in certain directions such as at fixed targets or a park position for the telescope Several sample track files have been supplied See 5 4 1 Track Files 5 Click on the Bias Control button to display the Bias Controller dialog box and use it to adjust the telescope position 6 When finished select the Monitor radio button in the Control Mode or exit Telescope VCP The telescope will remain at its current position 8 4 File Formats 8 4 1 Track Files The track files used by Telescope VCP are simple text files that contain a spline path for the telescope to follow They usually have the extension TRK although any extension will suffice Some sample track files can be found in Servers TelescopeServer Sample tracks A tra
139. scope is used create a new entry in the logbook recording your name the date and time and the work you will be doing If problems occur make a note of them If previous problems have been fixed note this down too At the end of the session indicate whether the telescope is still operational or whether there are problems which should be addressed and prevent it from being used A notice board may also be useful for quickly indicating the current state of the system and its outstanding problems However the ultimate reference should be the system logbook Check the operational status of the system At the start of each session check the logbook or notice board to determine whether the telescope is operational whether any new problems have surfaced or old ones have been solved and to refresh your memory about the existing known problems 15 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Check before turning on the power If the power to the system has been turned off make sure you know why before attempting to start the system up The system may have been turned off because a serious fault was observed and turning it on again could damage system components 3 5 System Co
140. scope or enclosure acting strangely be ready to stop it in an instant Particular things to watch for are oscillations jerky motion moving too fast or moving too close to an end limit 13 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual The Emergency Stop buttons are the best way to stop the telescope from moving in an emergency Keep it close to hand and be ready to use it at all times If this is impractical then plan ahead what you would do in an emergency Failure may also occur in the electronics or other parts of the system If you think you see or smell smoke or you hear unusual sounds from the telescope or cabinet press the Emergency Stop button turn off all the power and then investigate Do not restart the system until you are certain that nothing has been damaged Investigate problems before continuing If a problem occurs such as the telescope stops tracking try to determine the cause of the problem before attempting the operation again or rebooting the system This is important because damage to the telescope may have occurred or damage could be prevented by removing the cause of the problem so it doesn t happen again See the following section on Troubleshooting for s
141. sition can slow down other operations on the computer on which Telescope VCP is running Network activity may also be affected It is recommended that for routine purposes the maximum polling rate be limited to once per second i e refresh period no less than 1 second Telescope VCP starts up with a refresh period of 1 second by default 8 2 2 5 Polar Plot The polar plot in the top right quadrant of the main window displays the actual position of the telescope as a small telescope icon The polar plot uses the convention that North is at 12 o clock East is at 3 o clock zenith is in the center and the horizon 0 elevation forms a circle around the outside of the plot This is similar to the view when looking down on the telescope from above A trail of the last 50 points is maintained to show where the telescope has been The plot is updated each time the display is refreshed see 5 2 2 4 Display Group The actual position of the Sun is 63 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual also displayed while it is above 5 elevation providing a quick indication of whether the telescope is in danger of tracking too close to the Sun 8 2 2 6 Move Mode Group These controls are used to mo
142. spline segments The next line contains an integer indicating the number of spline segments making up the track For a stationary track there is typically only one segment For tracks to measure telescope performance there could be dozens of segments Track files for tracking moving objects may consist of hundreds or even thousands of segments The remaining fields are repeated as a group for each spline segment Time Offset This is the number of seconds since the epoch at the top of the file If the epoch was disabled then this is the number of seconds since the start of the track A track with a zero epoch starts when the Go button is pressed The time offset can be specified to very high precision as much as 15 significant digits Time offsets must be increasing the time offset of each spline segment must be greater than the time offset of the segment before it Azimuth A B C and D terms The next part of the spline segment defines the azimuth position of the target The A term corresponds to the position the B term to the velocity C to half the acceleration and D to one sixth of the jerk change in acceleration with respect to time over the period of the segment The values are specified in degrees and seconds i e A is in degrees B is in degrees per second C is in degrees per second per second and D is in degrees per second per second per second Each can be specified to as much as 15 significant digits 77 EOS Space Sys
143. status changes Time UTC field The telescope system clock time is shown in the Time UTC field This value is precise and accurate to 1 microsecond in relation to the telescope position coordinates that are displayed simultaneously 67 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual If the telescope time has been set to a simulated value then simulated will be displayed below the label This is not the same as running the simulated Telescope Server application Status indicators The general state of the Telescope Server application is shown by the colored box in the center of the main window and the message if any to its immediate right Green indicates everything working normally yellow indicates a warning such as homing in progress and red indicates a more serious error such as an instrument fault or failure to connect to the telescope Changes in Telescope Server state are automatically displayed regardless of whether continuous polling is in effect Green Initialised Telescope Server is ready to accept commands No power is applied to the telescope drives Green Standby Telescope Server is ready to accept commands Power has been applied to the telescope drives and they
144. strument fault and has entered the Error state The fault may be unrelated to the focus mechanism Black Not Installed The secondary focus mechanism has been disabled in Telescope ini Note that this state may not be displayed until a command is given to drive the focus The status indicator is updated whenever the status changes independent of when the display positions are updated 66 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Go button The Go button is used to execute a move command specified by the Slew and Track controls A new move can be started at any time provided Telescope VCP is in control of the telescope If the telescope is currently in the middle of another move then it will cancel this move and smoothly transition into the new move If the telescope is not tracking when this button is pressed then power will be applied to the motor drives the axes will be homed if necessary and the telescope will carry out the new move Also the focus and rotator will move to their commanded positions if they are enabled This button is only enabled when Telescope VCP is in control of the telescope Stop button Pressing this button will bring the telescope to a stop in a controlle
145. t be found This may indicate the file has been corrupted or could not be read or a mistake was made editing the file Common editing errors include misspelling a key name deleting a key or moving a key to the wrong section Error during tracking tracking aborted A fatal error occurred while the telescope was operating The current tracking or slew command has been aborted Homing failed The homing operation for an axis failed to complete Unrecognised string value string A parameter in TELESCOPE INI which only takes a narrow set of defined values is invalid This usually indicates that a mistake was made editing the file Invalid first entry in string table must start from An entry numbered 0 was found in a compensation table in TELESCOPE INI Compensation tables are 1 based not 0 based Entry number in string is missing An entry appears to be missing from a compensation table in TELESCOPE INI This error occurs if the compensation table contains entries for number 1 and number 1 but no entry for number string must not be zero A value of 0 is not allowed for the specified parameter in TELESCOPE INI 129 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosur
146. t to briefly describe the meaning of the log entries EOS may request log files from time to time in order to assist in the diagnosis of technical and software problems 121 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 13 APPLICATION PROGRAMMING INTERFACE The Telescope Control System comes with an Application Programming Interface API called insert name here This library provides a programmer access to all the functionality available in Telescope VCP In addition the API has the ability to send tracks to the Telescope directly and perform other useful commands The API consists of a number of C header h and in1 files and library files 1ib currently only available for Windows To control the Telescope you will need to include all the files in Client Library in your software project To command a device such as the telescope or mirror cover call the appropriate library function Some commands retrieve data from the device immediately To receive data publications from a device asynchronously whenever the data becomes available call the function which subscribes to the data and provide this function with a pointer to a callback function The API will then call this ca
147. td IceStorm Enclosure series 2 User Manual Clock Sync The telescope clock has lost synchronization with UTC As a result tracking may not be accurate 8 2 2 10 Meteorological Group The Meteorological group is used to monitor and set the meteorological information used by Telescope Server to calculate the compensation required for atmospheric refraction during tracking It also includes a field for the temperature of the truss which is used to adjust the secondary mirror to correct for thermal expansion of the structure Temp edit box The temperature in degrees Celsius used for calculating the amount of atmospheric refraction This should be measured at the site of the telescope Press edit box The pressure in millibars used for calculating the amount of atmospheric refraction This should be measured at the site of the telescope Humid edit box The humidity in percentage relative condensing used for calculating the amount of atmospheric refraction This should be measured at the site of the telescope Truss edit box The temperature in degrees Celsius used for calculating the focus compensation to apply for expansion in the truss This should be measured by sensors attached to the telescope The values being used by the telescope are displayed when Telescope VCP initially connects to Telescope Server The values are not refreshed with the rest of the display but only when the Get button is pressed To change the data us
148. td This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Normally the telescope at the current site is displayed by default Some of the commands accessible via Telescope VCP are quite low level and while not potentially damaging could interfere with other telescope operations Therefore a password must be entered to connect to the telescope The password for NAOC is vcpuser If the Telescope Server disconnects unexpectedly at any time a notification dialog is displayed Log button This opens up the Log Data dialog box that allows the user to log position data to a file See Figure 5 5 The user selects the file to be written to the parameters to be logged and can start and stop logging as required If the file doesn t exist it will be created If the file does exist new data will simply be added to it A recommended convention is to use the extension 10g for log files One record will be appended to the file each time the main window display is refreshed either by pressing the Refresh button or enabling periodic refresh using the Every check box The data typically includes the current time as well as the commanded and actual positions of the telescope and is written in a format which can be imported into Excel for analysis
149. tem has no built in Sun avoidance The user must exercise appropriate caution when operating the telescope during the day to minimize the risk of exposure to direct sunlight e Keep the telescope pointed at least 25 away from the Sun at all times e Do not leave the telescope parked in a position where the Sun could move into its field of view within the next 24 hours It is recommended that when not actively in use the telescope should be pointed to the North 0 azimuth 17 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 18 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 4 ENCLOSURE SYSTEM OVERVIEW 4 1 Dome 4 1 1 Description 4 1 2 CANopen Sub Systems 4 1 2 1 4 1 2 2 4 1 2 3 4 1 2 4 4 1 2 5 4 1 2 6 Safety Shutters Azimuth Vent Doors Cooling Systems General Digital Outputs EOS Space Systems Pty Ltd User Manual 19 This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information he
150. tems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Elevation A B C and D terms Following the azimuth terms are similar terms for the elevation These are also specified in degrees and seconds Range A B C and D terms At the end of each spline segment are the terms for range These have the same format as those for azimuth and elevation but are specified in seconds as a distance measurement corresponding to light travel time instead of degrees The range is used to determine whether to apply atmospheric refraction a value larger than about 0 000667 time for light to travel 200km will cause atmospheric refraction to be applied This was a carryover from Keystone and is not really relevant to NAOC Note that if consecutive spline segments are not carefully specified to run smoothly into each other then the telescope will slew between them at the maximum speed allowed For example a track file for a stationary target at 180 azimuth and 10 elevation would be 0 1 0 0 180 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 00 00 0 0 This specifies that there is no epoch and the track consists of one spline segment This spline segment has zero time offset an azimuth of 180 with zero velocity acceleration and jer
151. teps to take when trying to resolve a problem Report all accidents or incidents as soon as possible This may prevent further damage or injury from occurring and will also help to ensure it doesn t happen again Advice can also be given on the possible consequences to system performance and suggested tests to conduct to determine if damage has occurred and whether the system is operational 3 3 Access to the Telescope Enclosure Do not approach the telescope while in use There are several dangers associated with being near the telescope while it is in use even when it is idle The most obvious danger is being struck by or caught in the moving mechanisms The motors which drive the system are powerful and can easily cause injury or damage Even if the telescope appears stationary it is not safe to be under the Optical Tube Assembly As a remotely operated system the elevation drive can move without warning There is also the risk of causing damage to the telescope by bumping or jarring it The telescope is a precision optical instrument and the delicate optical and mechanical components can be easily broken or knocked out of alignment Always take care when moving around near the telescope Casual visitors should be escorted by expert users and provided with safety instructions Children 14 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information
152. the Telescope Control Computer 6 Create a folder C EOS Utilities 7 From the Utilities folder copy the folders TelescopeVCP StarCal Log viewer DeviceBrowser and DML File Editor into C EOS Utilities 49 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 6 5 3 Installing servers on other computers Remember the MetServer must run on the computer connected to the Vaisala mets station by serial port You may need to change the serial port number in the Met Server dmx configuration file under ConfigServer ConfigFiles Lick You may run many other servers on the same machine running the Dispatcher To install each other server on a computer copy the CommonLocalConfig dmx file you changed on the dispatcher computer in to C Windows Ensure there is a folder C EOS Servers and copy the folder containing that server into it Also copy whatever utilities you want into C EOS Utilities You can test each server as long as the four essential servers Dispatcher ConfigServer AlertServer and LogServer are running Use the DeviceBrowser to see the server s state and check the server s log if anything strange occurs 6 5 4 Installing StarCal StarCal depends on 3 files w
153. the map will be blank The sky map display automatically updates every minute Toggle the Refresh button on the toolbar or the Sky Map Refresh menu item to disable this feature The Northern or Southern hemisphere stars can be displayed if desired The stars in the Northern and Southern hemispheres can be displayed by pressing the Northern Hemisphere or Southern Hemisphere buttons on the toolbar or by selecting the Sky Map North Hemisphere or Sky Map South Hemisphere menu commands Note that these displays do not change with time or location and can be viewed without connecting to a telescope 9 3 4 Tracking a Star 1 Connect to a telescope 2 Take control of the telescope In order to command the telescope to move StarCal must be in control Choose Telescope Take Telescope Control to take control of the telescope 104 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 3 Display the current sky map 4 Select a star to track Click on one of the stars using the mouse It can sometimes be difficult to select the desired star especially if it is faint and represented by a small dot or if it overlaps other stars In these cases it can be helpful to expand the window to fill the entire screen se
154. tion Server Resource Server System Manager Machine Manager 4 3 3 Basic Observatory Level Servers 4 3 3 1 4 3 3 2 4 3 3 3 4 3 3 4 4 3 3 5 CANServerProxy CANServerCooling CANServerControls DomeServer TelescopeServer 4 3 4 Additional Servers 4 3 4 1 PeopleSafe Server 4 3 5 Client Applications 4 3 5 1 435 2 4 3 3 3 4 3 5 4 4 35 93 4 3 5 6 System Management Interface Dome User Interface StarCal User Management Interface Resource Management Interface Software API 5 SYSTEM OPERATIONS 5 1 Enclosure Start 5 2 Enclosure Stop 5 3 Manual Controls 5 4 Software Controls 5 4 1 System Management Interface 5 4 1 1 5 4 1 2 5 4 1 3 5 4 1 4 5 4 1 5 5 4 1 6 Description Logon Starting the Observatory Control System Stopping the Observatory Control System Starting an Individual Server Stopping an Individual Server User Manual 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 24 24 24 24 24 24 24 24 25 25 27 27 29 29 29 29 29 29 29 29 IceStorm Enclosure Series 2 User Manual 5 4 1 7 De registering an Individual Server 29 5 4 2 Dome User Interface 29 5 4 2 1 Description 29 5 4 2 2 Logon 31 5 4 2 3 General Features 31 5 4 2 4 Safety 36 5 4 2 5 Shutters 38 5 4 2 6 Front Rear Shutter 40 5 4 2 7 Azimuth 40 5 4 2 8 Vent Doors 40 5 4 2 9 Vent Door 1 4 42 5 4 2 10 Cooling Systems 42 5 4 2 11 General Digital Outputs 43 6 TELESCOPE SYSTEM O
155. tly selected instrument rotator stored in Telescope ini will be overwritten In case it may be necessary to restore the old mount model it is recommended that Telescope ini be copied to a backup directory before executing this command Otherwise it can only be recovered if it was saved in another StarCal set file The accuracy of the new mount model should be tested by selecting and tracking individual stars 112 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 10 COMMON ENGINEERING PROCEDURES 10 1 Instrument Derotator Calibration 10 1 1 Introduction Each derotator will have instruments aligned approximately along the mechanical axis of the elevation bearing Any error will be corrected by the normal Starcal program as part of the mount model for that Nasmyth port However the instrument derotator s will also have small errors in bearing alignment with the elevation bearing axis and this must be corrected independently of the Starcal process This process need only be performed after the derotator s has been removed and replaced To correct for derotator bearing misalignment calibration tables are supplied within the Telescope ini file and the tables for derotator calibration are clearly
156. tor the angle of the axis with respect to zero orientation will be displayed in degrees Normal This is equivalent to the Absolute co ordinates mapped to 0 to 360 in azimuth 90 to 90 in elevation and 0 to 360 for each rotator Sky For Telescope and Sun this represents the ideal celestial right ascension and declination co ordinates both in degrees For each Rotator the ideal orientation in degrees will be displayed Refracted This is the Absolute position after atmospheric refraction if any is applied Note that the azimuth axis is unaffected by atmospheric refraction 71 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Biased This is the Refracted position after position bias entered by the user is applied see 5 2 2 1 Top Button Group Held This stage is not relevant for NAOC Sun Avoided This shows the position of the axes after applying any offset to avoid the solar halo This function is not implemented in this release of the software Speed Limit This stage shows the position of the axes after any position or speed limits have been applied Note that although speed limits are implemented they are not correctly reported in this release of the software
157. ument To adjust the nominal focus position of M2 follow these steps 1 Set best M2 focus on the instrument using through focus diameters Foucault testing or other method 2 In TelescopeVCP use the Focus button to see the three drives of the focus assembly Record the absolute position of each Tip and tilt if necessary to optimize the best focus image prior to recording 118 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 3 In Telescope ini find the Secondary Focus drive section and the subsection which defines the Collimated Position Offset parameters for each drive Carefully edit these values to the recorded values Secondary Focus Enabled YES Minimum Tip 450 Maximum Tip 450 Minimum Tilt 450 Maximum Tilt 450 Mirror to Image Tip Ratio 4 5 Mirror to Image Tilt Ratio 4 5 Ac Ac Ac Ac Ac Ac Ac Ac Ac Ac uator A Angle 180 uator B Angle 60 uator C Angle 300 uator A Radius 104 uator B Radius 104 uator C Radius 104 uator A Counts Per Millimetre Scale 800000 uator B Counts Per Millimetre Scale 800000 uator C Counts Per Millimetre Scale 800000 uator A Collimated Position Offset 9920000 Actuator B Collimated Position Offset 9
158. ure condition You will then need to Reset the E Secure State output 5 4 2 4 6 Outputs E Stop Reset reset the e EClose Reset reset the e E Secure Reset reset the 5 4 2 4 7 E Secure Hold Off 5 4 2 4 8 Faults e No Communications if this indicator is orange then Dome Client is not able to communicate with the Icestorm 2 enclosure Operation of the enclosure via the Dome Client will nto be possible until the communications issue is resolved 5 4 2 4 9 Example of Operation 5 4 2 5 Shutters 5 4 2 5 1 Description The Shutters control panel provides access to the functions and state of both shutters of the Icestorm 2 enclosure 38 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual Fs Dome Client Alice y ii oj xj File Edit Help Pal Safety El p ice a Front Shutter iC Rear Shutter i EJ z lt T Oo 5 S E Vent Door 4 amp Cooling Systems l EE Digital Outputs Dome Components m Emergency Software Command Output State Set EStop J Set EClose 2 Set ESecure 3 m Both Shutters Attributes Enabled In Position Closed Homed Front Shutter Both Shutters Rear Shutter State Off
159. ve the telescope Slew radio button This button is used to slew the telescope A slew is a high speed move to a new position in the shortest time possible To slew the telescope select this button and enter the coordinates of the new position azimuth and elevation in degrees in the edit boxes labeled AZ and EL Then press the Go button to commence the slew Either azimuth or elevation but not both may be left blank in which case the current azimuth or elevation of the telescope will be used Track radio button Telescope VCP also supports more complex moves than slews Select the Track radio button and enter the full path name of a track file into the adjacent edit box The Browse button can be used to easily find a file Then press the Go button to start following the track specified in the file Track files are described in 5 4 1 Track Files This feature is normally only used for testing purposes Inst Rot buttons The nst Rotator A and Inst Rotator B buttons will display the Instrument Rotator Control dialog for the respective instrument rotator see Figure 5 4 This allows the user to control the position and behavior of the instrument rotator Note that Telescope VCP does not have to be in control in order to move the rotator This allows the orientation of the image to be adjusted while StarCal is tracking a star Each instrument rotator is a single controllable axis which rotates the instruments on the teles
160. vided so that comparisons can easily be made The display is updated as described in 5 2 2 4 Display Group Data for every possible combination of list box selections is collected and stored so that the listbox selections can be changed to view different types of data even if the display is not being updated First listbox The first listbox chooses whether to display information on the Telescope the Rotator A Rotator B orthe Sun If either Rotator is selected then data will only be displayed in the AZ edit box If Sun is selected then the next two list boxes are ignored Second listbox This selects whether Commanded or Actual position information will be displayed Commanded position is the target point that the telescope is being instructed to follow while Actual position is where it currently is The difference between these two values all other listboxes being equal represents the following error Third listbox This listbox is used to select the processing stage at which to report the position Commanded positions go through several stages in the process of converting them from an ideal angular representation to encoder counts used by the low level servo control system Actual positions go through the same stages in reverse to convert them from encoder counts to an angular measure of direction The stages are Absolute For Telescope and Sun this represents the ideal azimuth and elevation co ordinates in degrees For each Rota
161. vious star 8 Mark the star s position Click on the Mark button when the star is positioned appropriately The current positions of the telescope and the star are taken and will be used later when generating the mount model The current offset will be displayed on the Make Star Observations dialog box The Mark button can be clicked as many times as desired Only the information from the last click will be recorded and used 9 Accept the observation Click on the OK button in the Make Star Observations dialog box to accept the observation This will record the details of the observation and will close both the Make Star Observations dialog box and the Bias Controller dialog box The OK button will not be enabled until the Mark button in the Bias Controller dialog box has been clicked 110 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 10 OR Reject the observation Click on the Cancel button in the Make Star Observations dialog box to reject the observation This is useful if an error occurs with the telescope tracking or if the user wishes to interrupt the current observation sequence to perform some other task perhaps returning later to continue the sequence Note that if a new region
162. was created using Operations Add New Observed Star in Step 5 then rejecting the observation will cause the new region to be discarded instead of being inserted into the sequence 11 OR Skip the region Click on the Skip Star button in the Make Star Observations dialog box to reject the region altogether This is useful if the star cannot be found perhaps due to cloud or other interference The region will be marked as Skipped and will not be included in mount model calculations 12 Repeat for each region Repeat Steps 5 to 11 until all regions in the sequence have been observed Note that it is possible to abort the sequence before observing all regions anda sequence does not have to be completed in order to generate a mount model 13 Save the data to file Save the collected data to a file using File Save or File Save As The observation details can be reloaded at any later time using File Open Further observations can then be added to the sequence if desired if all the regions have been observed then new regions will have to be added manually using Operations Add New Observed Star 9 3 6 Generating a Mount Model This procedure describes how to generate a mount model An observation sequence must be loaded into StarCal either by carrying out the procedure described in 6 3 5 Star Calibrations or by loading an observation sequence from a file using the File Open menu command 1 Generate a mount model
163. without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 l lok Star Calibrator File Telescope Operations Graphs SkyMap Window Help User Manual Star Calibrator C Keystone Site StarCal starcal_lIA_1999_0930_Fixed set E3 File Telescope Operations Graphs SkyMap Window Help olsam e 0 ol E Currently Visible Stars Latitude 032 14 57 00 Longitude 110 59 13 80 UTC 124231999 18 57 47 Selected Star FK4 no 907 Magnitude 2 1 Colour F AZ 000 37 55 02 El 031 44 5312 ij Sky Map d Observations Mount Model Catalog 2 Telescope Initialised HHE H Qb tions ie Region Star Prefit Residuals deg deg arc sec Obs Azim Elev FK4 Azin Elev Azim Elev Error 1 250 63 1004 250 63 70 56 73 12 101 63 2 240 67 898 239 67 71 03 73 46 102 21 3 242 82 870 241 82 71 96 76 46 105 06 4 222 69 1615 221 70 71 36 74 92 103 49 5 216 67 885 216 67 71 87 75 27 104 10 6 202 65 1606 201 65 70 44 76 57 104 07 7 203 72 871 202 72 70 81 75 79 103 75 8 189 77 1596 188 77 71 44 77 27 105 27 9 182 69 855 181 69 69 33 75 66 102 64 10 186 77 1596 185 77 71 06 78 39 105 84 iy 165 76 1586 165 76 69 41 78 77 105 02 12 172 67 1588 171 67 67 43 76 23 101 L N Sky Map _ Observations Mount Model _ Catalog Telescope Initialised Sky Map Observations Mount Model Catalog
164. ystems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual 2 3 Emergency Stop Facility On each level are red illuminating Emergency STOP ESTOP buttons Pushing a button activates the ESTOP low level controls and cuts power to all servo controlled systems immediately The pressed button flashes and all other ESTOP buttons illuminate to show the ESTOP status at all levels in the enclosure Pulling on the hard illuminated button releases the hold on the ESTOP condition allowing software commands to re establish power to the servo systems NOTE releasing an ESTOP button does not remove the ESTOP condition it allows software commands to be sent to the low level controls to remove the condition and re establish normal operations Latest enclosures include an E RESET button to command this release of the emergency condition 11 EOS Space Systems Pty Ltd This document and enclosed information remains the property of EOS Space Systems Pty Ltd Information herein may not be copied nor disclosed without written consent from an Executive member of EOS Space Systems Pty Ltd IceStorm Enclosure series 2 User Manual EMERGENCY RESET AZ EOT OVERRIDE ESTOP and ERESET Buttons on Level 1 Typical Installations Note the Az EOT Override button in the figure above it is an override for the possible co

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