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AOGUI User Manual (NAOMI)

1. or similar for other computers For historical reasons the top level directory of the source is called spotAlign and not aogui Aodisplay2 terminal ServerXML py a ox RPC HTTP EPICS EPICS Illustration 1 Deployment diagram for aogui Starting and running The application is started by typing aogui in the command line If we want to run aogui in engineering mode we invoke it by aogui engineering True This allows saving of the working parameters General GUI layout The GUI has a layout divided into two major panels Each of the panels is divided into further subpanels etc until a single widget such as a button or input field The left panel contains a display panel which presents the WFS image and some buttons for executing the mirror flattening The display panel allows some control of the image appearance AO GUI segments Zernike Parameters Status Sequencer Realtime AutoWhite Simplex Light path WFS image Overlays segment control FSM control Z Grid Actuators Actuators Y Centroids Demand A B c 19 29 39 49 X 4095 W 4095 Midrange DACvalue A B 11 20 30 40 50 59 apat x Y vi Al A De B 5 12 21 31 41 51 60 67 XYZ x Y z 1 6 13 22 32 42 52 61 68 73 Spots SPOT x Y v 2 7 14 23 33 43 53 62 69 74 3 8 15 24 34 44 54 63 70 75 H 4 9 16 25 35 45 55 64 71 76 Pickoff pr
2. B Calibration of the pickoff probe NAS MXZOK NK NACKDEOCXINOEKIK AYE ADO EROXIK N X ROOM NIKKI OEA POIS BINREXKININNBIN NPOK XEM IO AO ROI IQ BIRON PIOKKIN EXA ROI X WK OG OG NOEKALX DESRDENOUNIK SNIRIEXX OD KERO KIKO OXON NEKO N DRINK IRD XXXIX XXIX X NIDO OSH PPNSEK KOK HOON MOC PEPINO XIII EE KOKAK ANAKAN ADORO EKPOMNO GX KECNSKACK KIN AN DAN RAEE NK WEN KO DK AECL PK OK XQ NNKY MOL MAKIN XK MOCOS EEX Observing For observations the user selects the Observing tab On the right hand panel select the Light path page First the guide star has be acquired by the telescope operator When the star is centred in the WFS the loop should be closed by pressing Close loop and autoguiding started by Guide on Also sending of the autoguiding packets must be enabled by clicking on Start packets button After the loop is closed it is a good idea to wait a little and check that the FSM is not near saturation If it is the offload to the autoguider should correct this in about 20 seconds Until the observations are finished sending of packets can be left active The AO loop and the autoguiding loop are opened and closed as needed During observations the observer and the OSA should be aware of the big indicators on left side of the GUI They should be all green green meaning ready before closing the loop When the loop is closed the AO loop state indicator turns light blue to indicate that the system is active Take care that the SNR remains
3. Unsuccessful or incorrect use of the the calibration actions can render the aogui or even the AO system inoperable so calibration should only be performed by trained individuals who are able to recover the system to a working state Calibrate responses By segment responses we define the amount of spot movement on the WES sensor in x or y direction when the tip and tilt values for a segment are changed by one transformed DAC unit The unit of movement on the WES is pixels The segment responses are needed so that aogui can know how much to move a segment in order to centre its spot Ifthe response is missing for any of the spots the segment can t be moved The values are saved in software Electra save spotAlign segmentResponses dat After clicking on Cal responses aogui will move all selected segments except the central four and find out the responses This procedure takes few minutes and is not likely to be needed very often Calibrate actuators Actuator calibration which is actually calibration of the strain gauges is very important for proper operation of the AO system The main purpose of this action is to find the relation between raw actuator DAC values and strain gauge readout values Once this relation is determined correctly setting the DAC demands to the middle position will put 0 volts on the mirror regardless of whether the strain gauge loop is closed or open This calibration is only needed occasionally when the st
4. 1f other network applications are performing well Run the web based GUI at http aopc1 tiptilt dm_controlGUI html and see if it responds normally Check by pinging that the machines with which aogui communicates are running and responsive aopcl naomiomc usp taurus Check if the rest of the observing system is performing OK Recovery Terminate and restart aogul Power cycle any computers if they are not responding Verification Check that aogui response time is as usual Real time system Some or all segments are extremely inclined and can not be moved Rate of incidence Rare Always related to some electrical activity in GRACE Summary One or all segments appear strongly tilted and can not be forced to the neutral position any more Scenario This only happens when there is some activity in GRACE which disturbs normal electrical consumption using vacuum cleaner switching on and off other large electric loads etc Diagnosis The segments on the Segment page of aogui are strongly tilted so that the bottom side is visible The actuator values read either 300 or 7891 and can not be changed Recovery The recovery is rather straightforward and involves simply running NaomiRestart aocontroll on aocontroll computer After the restart process is successfully finished all segments will assume the neutral position within seconds It is not necessary to restart AOserver unless restart fails see the troubleshooting guide for thi
5. Clear Go Init Status DEE Lucky mirror Last update 2013 11 13T16 29 33 Select mirror position Current position Biag Illustration 14 Light path panel FSM FSM demands x Y Midrange Current values x 4095 y 4095 Offset in arcseconds 15 10 KG 15 10 05 00 05 10 15 OASIS mirror Last update 2013 11 13T16 29 33 Select mirror position Current position HABI Filter focus Last update 2013 11 13T16 29 33 Select filter position gt Current position BO Pos DM Take zeroset values Dichroic Select dichroic Current dichroic 10 0 8 0 6 0 4 0 2 0 0 400 500 600 700 800 900 1000 LUCKY Server status OK Actual temperature 39 7 C Shutter shut Binning 1 EMCCD gain 20 Clocks idling The light path page provides a visual overview of the most of the mechanisms and light sources present in the NAOMI system Apart from monitoring it also possible to change values and move mechanisms Here we describe the elements of the light path page NCU The NAOMI Calibration Unit NCU unit consists of pinholes on a moving stage Each pinhole is illuminated by a light source The moving stage can bring into the light path also the acquisition camera or pass the light from the telescopes into the AO system The positions of the pinholes are in the database so it is possible to move the stage to any of the named positions or to a numerical position which is manually entered The
6. SG loop state is unknown Moving the FSM The Fast Steering Mirror FSM can be controlled from the segment page either by entering the values between 0 and 8191 into the input fields by clicking on the target like icon or by pressing the Midrange button Moving the pickoff probe The pickoff probe in the WFS unit moves the image on the WFS For proper DM flattening it is very important to have it in the exactly right position The pickoff probe position can be changed by entering a value into the input fields followed by pressing the Apply button The units are arc seconds Zernike decomposition Zernike decomposition page is a tool for analysing the WFS Shack Hartmann pattern It presents a number of Zernike terms in graphical and numerical format and will also calculate and draw the wavefront The tool can be used to record any wavefront aberrations which is quite useful in on sky operations especially for detecting defocus It is possible to switch between different modes of presentation but normally the Wavefront will be selected Bar graphs on the right side of the panel show values of individual Zernike terms On the bottom are the wavefront error RMS and the Strehl ratio calculated for the wavelength defined in the Parameters panel Zernike i a is Sequencer Realtime AutoWhite Simplex Wavefront statistics Piston 0 0 ioo 1 0 Tilt y 0 0405459237379 1 0 1 0 Tilt x 0 06768936192
7. Sg pues Masao ey Sy dec a E Spee mse ne eine og EE 20 AUTO WIS Panne iat renani aa 21 Simplex PM A 23 Running simplex PROCS UES aaa a aa ba NLA Ap 24 Camera selection and image VICWING ccccsccesseceseceseeceeeeeeeeseceseeeeseceeecnaeeeeseeeeseaeees 24 NG kanaan tocata 26 O O 26 A emt yee ty PCa e eee ena P ener ern eT ere eT arene rete 26 DA S E AN AA TA ANN ada eetagpav ts 26 OASIS MO illa 26 DIGONG A TN ie 27 Pra ITO A A a a a e ae meso Saleen sa tna 27 A ANAN ANG AA ANG AG AG AGE 2 CAMA WIG AANGAT AA AA 27 O AA A 28 Starting and quitting the PUC A AA AAA At 28 Starting NG AOS ia 28 Starting the real time software on the PE ios 28 Flattening the mirror using AOS 6 iis added 28 Wale an A Gaga AaLA AG EG A A NIT ANI IR 30 Removing non common path EOL lt waiiesedicvatrdsncvshseadiyinsd iota Gaan aakala 30 Moving the segments manually AA NAAN GAGANA NABA 30 Inspecting segment and sports ado 31 Wavefront analysis using Zernike decOMpoOSItION oooonoccconocooccnonaconnconnnconccnonoconcn cono no connanccnnnoss 31 Calibration of strain Ta gS LAAL AYA AE baa AN Daan AG BALANGA 31 Calibratiomof the pickott probe rt e kaanak 31 A AIDA 31 NAOMI troubleshooting guides cccccscccssscesecesseceseceseecesecesceceseceseeeneeceseecseeceeeenseeceenaeeeesaeeees 33 MECA arinta A AP AA RATA 33 WES mechanisms do not respond Dala a ANAL 33 WES status keeps red Error or blue Busy StatUS ooonocnnnccnocononcconcnconcconnonanoconc
8. configurations suitable for different observing conditions or calibration tasks and store them in the database All of the real time system parameters are then changed simultaneously just by selecting the desired configuration This is the recommended method to configure the real time system Changing individual parameters on the fly can cause bad performance if not carefully tested When any of the real time system parameters differs in value from the default for the current configuration the configuration status will changed from OK to Mismatched This is indicates that the system is not properly configured and it should not be used for observations Ideally all configurations needed for observing should be prepared and tested in advance and the observations should be made with predefined configurations Reconstructor Several parameters define the behaviour of the reconstructor Currently the only type of the reconstructor is based on Zernike polynomial decomposition It be used up 6th radial order of the Zernike polynomials Apart from the polynomial order it is also possible to change Control loop gains There are separate gains for tip tilt of the segments XY piston of the segments Piston and tip tilt of the fast steering mirror FSM Changing of the gains is very dangerous because it can cause instability of the system It is not realistic to think that an ad hoc change of the gains can give better results than values obtained with test
9. idle on green background Harmless messages in the terminal Here are some error messages and warnings which may appear in the terminal where aogui was started At startup The executable caRepeater couldn t be located x because of errno No such file or directory x xx You may need to modify your PATH environment variable x Unable to start CA Repeater process Error in reading the naming service host taking default whtcns ing iac es Error in reading the naming service port taking default 35777 Creating server CA client library is unable to contact CA repeater after 50 tries Silence this message by starting a CA repeater daemon or by calling ca pend event and or ca poll more often When switching between tabs CORBA COMM FAILURE omniORB COMM FAILURE WaitingForReply CORBA COMPLETED MAYBE Traceback most recent call last File usr local aoSoftware lib python aoguiDir WFSImage py line 638 in grabLoop el historyServer objref getElement 1 File usr local aoSoftware lib python dm control idl py line 371 in getElement return omnipy invoke self getElement 0 dm controlIDL HistoryServer d getElement args COMM FAILURE CORBA COMM FAILURE omniORB COMM FAILURE UnMarshalResults CORBA COMPLETED YES CORBA TRANSIENT omniORB TRANSIENT CallTimedout CORBA COMPLETED MAYBE These messages can be ignored as they have no impact on functionality of aogui and NAOMI in general Appendix A C
10. stage starts to move after the position in the combo box is clicked or when the numerical position is confirmed by pressing the return key The intensity of light on the pinholes is regulated by irises The iris is changed by entering a numerical value and pressing return or the tabulator while the cursor is in the input field The iris mechanism can be initialised by pressing the Init button While the mechanism is moving the current position field turns to blue When the current position matches the demand the current position is green In case of error the current position value is replaced by ERR on a red background Lamps can be switched on and off When a lamp is on its name appears on a yellow background FSM The fast steering mirror status is indicated by the current numerical values and graphically by a spot on a small graph The widget shows the last 20 acquired positions The positions are samples about once a second so the graph is useful to see long term drifts of the FSM positions and not for real time monitoring It is possible to enter values and move the FSM or to centre it The widget will not allow to enter values which exceed the DAC range DM The deformable mirror display shows the virtual mirror shape calculated from the current demand values This is opposed to the similar display on the segment page which is normally showing strain gauge positions The purpose of this configuration is to catch attention when the real tim
11. taurus computer and is the same as for other ING applications e It is required that on aodisplay machine the directory viss04 export Electra save dir is mounted on software Electra save with read write permissions for the user under which account the application is run e Directory aopc1 home tiptilt tiptilt must be mounted locally on home tiptilt tiptilt e Configuration file spotalignre must exist in the home directory and must contain all parameters that aogui uses Aogui is run under user name whtobs e A small daemon process called terminalServer py is required to run under root privileges This is necessary to allow communication of the aogui with the terminal which opens on taurus and is used to send commands like run and similar The terminal server is part of the aogui distribution It needs to be started from the upstart system The configuration file for this is in etc event d Newer version of Linux have the configuration files in etc init The content of the configuration file is described in Appendix C e An application dchgServer py must be running on aodisplay2 to provide communication between aogui and the dichroic changer This application is started by aogui if it is not running already The software is installed by copying the source tree to the machine where we want to install it and running from the top level directory of the source tree the installation script like this install scripts installOnAodisplay2 py
12. to the light path page and change the iris to a value of about 220 Select the tab named Simplex From there select the camera which will be used for this operation This will be either ANDOR1 or INGRID Centre the spot by pressing Centre light button few times When using ANDOR the exposure time should be 35 ms the electron multiplying gain 20 and the temperature 40 degrees C Window size should be 42 x 42 pixels With INGRID set the exposure time to 50 ms and the window size to 32 x 32 pixels Press Start and wait until the procedure is finished or the spot looks good enough Ifthe spot doesn t look good by the iteration 3000 it is best to terminate the procedure by pressing Stop and start again Good values for the merit function are 0 008 or less more or absolute value for ANDOR1 and 0 06 or less for INGRID The best FWHM achievable is about 2 7 and 1 7 pixels for ANDORI and INGRID respectively You should always consider the profile and 2D isophote representation before deciding that the spot is good enough Moving the segments manually The segment positions can be individually changed manually by entering the DAC demand values or the transformed X Y Z tip tilt piston values into the appropriate fields which are clearly marked on the GUI Alternatively a segment can be moved by pressing on the target like icon which is located left of the graphical representation of the mirror Steps are the following 1 Make sure th
13. typing C in the terminal where it was started Starting and quitting aogui does not affect the real time AO system or the mechanisms in any way Starting the AOServer Although AOServer is not part of aogui it must be running for AO system to function correctly It is running on aocontroll computer It is necessary to start up the C40 system first The commands to start software on aocontroll are NaomiRestart aocontroll AOServer The order in which the commands are executed is not important Only if there are persistent errors with NaomiRestart it might be better to to kill AOServer and start it again when the restart succeeds This measure is more for the piece of mind than because of any evidence that it really helps Starting the real time software on the PC The real time software for image analysis and DM control dm_control runs on the computer called aopcl It is started automatically when the computer starts and also restarted automatically if it is killed The status of this computer and the real time process is visible on the aogui s Status page Normally it should never be necessary to restart dm control but if the need appears the right method is to log into aopc1 computer under shut account and reboot it Flattening the mirror using aogui This task assumes that e The AOServer is up and running e The WFS camera which is currently in use is working e The optics covers are off e Database and name servers must be up an
14. window with live updated information about that segment will appear This information is much more comprehensive than the information presented in the GUI Changing segment status Segment status can be changed individually when only a single segment is selected This is done by entering numbers into Demand and XYZ fields The change is made when Return key is pressed or the input field loses focus A segment can be tilted by pressing on the target like icon The segment will be tilted so that the spot will move in the direction of the radius vector between the centre of the target and the cursor position By pressing H and L buttons the segment is moved in piston There are also collective functions for segment control Midrange will apply demands in the middle of the DAC range Note that these are demands and not necessarily the final real values When the strain gauge loop is closed and the strain gauges are not properly calibrated there may be a significant difference between the two Zero pistons is somewhat different function It will make all segments have the average piston value equal O but will preserve whatever existing tip and tilt The loop control button changes the label depending on the actual state of the strain gauge loop If the loop is open it will have a label Close loop if the loop is closed it will a label Open loop In case that the loop state is unknown it will change the label to display this No action can be taken when the
15. within safe limits and that the spots on the WFS have not exited their subapertures NAOMI troubleshooting guides The troubleshooting guides here include also some of the systems which are not part of AOGUI but AOGUI communicates with them and therefore we need to fix those system in order to continue operation After any troubleshooting action always check that you see a perfect spot on the science camera when using the calibration lamp If you achieve this most of the subsystems are automatically confirmed to working Mechanisms WFS mechanisms do not respond or WFS status keeps red Error or blue Busy status Rate of incidence Once per week or two Seems to depend on frequency of use Summary Both errors above are related and will typically appear simultaneously They indicate that the WFS mechanism control computer does not function properly any more The cause for this faults is unknown and is not likely to be ever identified A very similar system which is used for control of the mechanisms on the optical bench does not exhibit this kind of problems Scenario The problem usually becomes apparent when trying to move the pickoff probe either manually by the operator through the GUI or by an automated procedure like AutoWhite The pickoff probe would not move in spite of the command being given This also sometimes happens when the lenslet wheel is moved during the AutoWhite procedure The wheel does move however the application doe
16. x40 DynSendBoot 13 14 software Electra bin SGBSP2 x40 DynSendBoot 15 16 software Electra bin SGBSP2 x40 DynSendBoot 14 17 software Electra bin SGBSP2 x40 CPU 15 is alive CPU 14 is alive CPU 13 is alive CPU 12 is alive CPU 11 is alive CPU 18 is alive CPU 17 is alive CPU 16 is alive Recording Configuration aocontroll Local and remote Naomi services restarted Autoguider status is Error and shown in red Rate of incidence Medium After reboot of aopcl or portserver9 Summary Aopcl can t connect to portserver9 with its drpd daemon any more so no autoguiding is possible Scenario After Diagnosis aogui shows big Autoguider error label on red background In the Telescope panel the value next to the Packets label is also Autoguider error on red background Recovery At the time of writing this can only be recovered by the computing group Luis should be contacted We are working on a more solid solution with dedicated portserver for NAOMI After the portserver connection has been established again it is usually necessary to restart the real time system Load the web based engineering GUI and press the Kill button Confirm the decision in the pop up window that appears The application will restart itself immediately Mirror configuration has to be reloaded again and the working configuration has to be loaded Verification About 10 seconds after the restart the Autoguider error label should turn to Autoguider
17. 3 70 75 j Nia ar Padi RAN Cua t 4 9 16 25 35 45 55 64 71 76 n a as Pickoff probe control 10 17 26 36 46 56 65 72 Bemani L 18 27 37 47 57 66 X Y Apply 28 38 48 58 Current position X Y Show live info select all Deselect all Toggle all No response Midrange Zero pistons Close SG loop Lamp on Illustration 6 Segment control together with FSM and pickoff probe control Selecting the segments Most operations related to segments perform only on segments which are selected A segment can be selected individually by clicking on it It is possible to select all segments by clicking on Select all deselect all segments and toggle their state The selected segments appear green on the GUI The button No response can be used to select the segments for which no response has been determined The central four segments always belong to this group If any other segments are shown to be without a valid response an action must be taken to determine the responses again Observing segment status This can be done in two ways when a single segment is selected the most important parameters related to its status are shown in the fields on the left side of the Segments page The content will disappear when more than one segment is selected or if no segment is selected Another option is to check the Show live info check box and then hover the mouse cursor over the segment of interest A
18. 62 Pro 1 0 Astigmatism 45 0 0202440980685 CA Ta Defocus 0 0536136198081 r T Astigmatism 90 0 125135848847 1 0 T 1 0 Auto levels Min 0 Max 300 Trefoil AAAA AE Displayed object 1 0 1 0 Wavefront PSF C Image e Centr O Calc centr Commune 0 026620014589 l stag stop Coma along x 0 00942478320831 Fitorder 6 e Wavefront error RMS 0 2113 l Reconstruction error RMS N A Strehl ratio 0 1715 Illustration 7 Zernike decomposition panel Program parameters This page should NOT be used by end users Parameters for the aogui application are stored in HOME spotslignrc The contents of this file is editable from the Parameters page Here are stored many program parameters Full understanding of the program operation is required before a change is made otherwise the application might be rendered useless From this panel values of the aogui working parameters can be checked changed and saved to the configuration file Illustration 8 Parameter panel type default value min max description int 2081 16384 Window upper left corner y software Electra save spotAlign None None Directory where caibration spot coordinates are stored float 0 None None The white light lamp iris setting 210 None None The camera stage position 130 None None The smallest angle between the segment radius vectors 250 None None Delay between image acquistions in continuous display 600 None None The amount of mov
19. H n n NE Hya etset SAna 1 The phase difference between the reflected waves in zero and tilted position is 65 22 ht yxtB y with the following meaning of symbols 6 Phase difference in radians A Laser wavelength Y B x X coordinate in the plane of untilted segment y Y coordinate in the plane of untilted segment h Segment offset in z direction The intensity in the interferogram at the position x y is then proportional to Born amp Wolf 5 2 I I cos 2 where lo and I are positive constants As the only part that matters is dependence on 9 it is enough to draw properly scaled value of 5 2 cos 5 Appendix B Calculation of strain gauge gain and offset values Each of the actuators that move the segments is mechanically coupled with a corresponding strain gauge This is to provide proper feedback to the real time control system of the current mirror shape Without it the hysteresis of the piezoelectric actuators would cause significant deviation between the desired and actual mirror shape thus rendering the system useless The strain gauges have almost linear response in the entire range of actuator movement The feedback appears to the system as a value in the ADC converter denoted here as a We consider this to correspond to the real position of the actuator in a linear relation The part of the real time system which calculates the wavefront aberrations sends a demand d
20. LA PALMA AOGUI User Manual Jure Skvar for version 20131113 Table of Contents NA ree 5 AA E aap wees Gees 5 Starting and TAIN ita An RE Lss Gaano nd 7 General GUI ayaan E E E EOE A E and tasi tease T BM EA E E E aa A EE E E E tesa 8 Operational control parla 9 Centre PICO probe nai AA AN NAA AN eves NAA NANA AA 10 O AA PAA 10 AN AA IP 10 Calibration pal a id AN 11 Calibrate TESPON Sn A AIN 11 A AA AA aly 11 Calibrate pickoff A A E IN 11 Mirror and spot CONTI nnaman iio ag a a kp AG Ka bbs 12 NN AA PAO 12 EK NA AA AA AA AT 12 LO AA AA 12 Load A A 12 Load TAWu nnay pnpa yaang und NGA AA AA Aa paga AG mend np ap 12 Save O OO Ree ee eR Oe 12 AY 12 Adaptive AA 13 Close loons Open lO SA KA NANA its 13 Static A AP aa i 13 Telescope controlo osasi ei A ES 13 Start guriding Stop EUA aNG oa 13 Start packets BOP packets sceccu eiaeia aei ia E GG ANA 13 Segment FSM and pickoff probe controlados 14 a A NAT NANANA Ha NANANA AA AA 14 Observing segment STATIS si AA LAS 14 Changing SEMEN da 15 A A ca tiatoy cate alleles wine E N vod E ce aujeeaiinntess 15 Moving The pickok probeta ole kad maa ire he kaan 15 Zernike d composition anan aNG AN AT NAGANA MG AA NG daa 15 Programi parameters NATAN AABANG ANDA A Ea ESA E AA ES ASEA 16 AA 18 ss AA NA NAA AA A 18 Realtime control pahabaan AGA NANA AA AA coed hua E Eai 19 CONO AKA NAAN AALANGAN 19 Recens IONS AM 22 Gi Oo ate NA AA RANGE NB nG AA ae 20 Camera COMME Uh saat Pec ipi oc ven
21. alculation of fringes on the segments In the three dimensional representation of segments it possible to superimpose an image of calculated interference fringes on top of each segment These are similar as would be seen using FISBA interferometer However as they are calculated and not obtained by real laser interferometer there is a significant amount of arbitrariness on how they are going to look like We can decide to use raw also referred to as final DAC values to the segments we can use demand values or we can use spot positions within subapertures Any of these methods can be using absolute values or values relative some zeroset values for example taken after the spot on the science sensor is optimised Regardless of the method it is necessary to obtain the piston value of the segment distance of the segment centre from the zero plane and the normal vector to the segment plane Let s assume that actuators A B and C have coordinates 0 0 Za Xp Ys Ze and Xe Yo Zc respectively Then the normal n to the plane is perpendicular to vectors AB AC and BC so we get a system of equations KMAY NA 232 n 0 X N Yc n 4 z6 2 n 0 xc xp AAVV Az Z n 0 We can set nz 1 and get Xgn Yn ZZ Xch t Ye n Zzo Z4 with the solution me DAZE 25 Vel 27 ze n XcVeatXeye ja Xe Z4 25 x_ Z4 Zc TXCYpFXpYC To get normalised vector n we divide all components by the norm of n NE2Yn
22. all uninitialised mechanisms Verification Check that normal NAOMI operations can be performed GUIs AOGUI stops responding Rate of incidence Rare maybe every few weeks Typically related to some other problems which the GUI doesn t handle well Summary AO GUI crashes but remains on screen Scenario This happens sometimes when communication errors between aogui and the real time system occur Diagnosis In the terminal where aogui was started a segmentation fault message appears an the prompt is returned to the terminal Aogui stops responding Recovery First kill the existing GUI This is done by clicking on the cross like kill window icon in the upper right of the GUI window The system will ask for confirmation to which we agree If this doesn t work for any reason type xkill in the terminal window and click on the aogui window with the death depicting icon Start a new instance of aogui in the terminal Verification Aogui should now run OK AOGUI gets stuck or is very slow Rate of incidence Rare Summary Under some circumstances aogui response might become very sluggish or might appear to be stuck This always indicates some communication problems which may be also affecting other parts of the observing system Scenario Normally this is not a consequence of user action Aogui response to actions such as changing pages is very slow the WFS image is updated very slowly Diagnosis Try to establish
23. at exactly one segment is selected marked in green If there are several segments marked click on Deselect all and then click on the segment you want to move 2 Enter the desired numbers into the Demand or XYZ fields Note that these fields are in principle changing in real time For example if the values are changed by an external application they will change in aogui too However when the input field has focus it will not reflect the actual value of the system so that the user can enter own value 3 Alternatively click inside the coloured area of the target like icon The target is divided into several zones Clicking on black or white zone has no effect Clicking on blue green or red zone will move the segment so that the spot moves in the direction parallel to the vector connecting the centre of the target and the mouse pointer position The amount of movement depends on the colour of the zone and is higher in the outside zone Inspecting segment and spot status There are basically two ways to inspect the value corresponding to a single segment 1 When a single segment is selected green some of the values related to the segment and the corresponding spot are shown in the fields left to the graphical representation of the mirror 2 When Show live info check box is selected it is enough to hover with the mouse over a segment and all available information related to this segment will appear in a yellow tooltip window Warning The too
24. autoguiding and error message will appear if we want to start guiding Transition to guiding is only possible from the tracking mode Start packets Stop packets The TCS does not actually switch to the guiding mode until it has received guiding packets from the serial port Sending of the packets is enabled or disabled by this button If the Guide off button is pressed the TCS will stop guiding even if the packets are still arriving Segment FSM and pickoff probe control Deformable mirror segments can be controlled individually or in groups within the aogui application This is done from the Segments page Ideally there should be no need to move the segments manually for operational purposes This is because the DM in its relaxed state produces spots which fit well into their subapertures on the WFS However sometimes this need exists and therefore this possibility exists within aogui These action are accessible when the tab Segments is selected Segments Zernike Parameters Status Sequencer Realtime AutoWhite Simplex Light path Segment control FSM control Actuators A Actuators Demand A B C 19 29 39 49 x 4095 Y 4095 Midrange DAC value A B c 11 20 30 40 50 so Spot asana X Y v ADC A B C 5 N12 21 31 41 51 60 67 XYZ X Y Z 1 6 13 22 32 42 52 61 68 73 Spots SPOT X Y Vv 2 7 14 23 33 43 53 62 69 74 3 8 15 24 34 44 54 6
25. d running Steps to be taken when starting from scratch 1 Configure all mechanisms manually from the light path panel Note that the complete sequence of actions below is necessary only if you are starting from scratch with all mechanisms in some random positions If you already see the spots approximately centred within their subapertures and SNR at lease 30 you can go to the next step Go to the Light path panel Set pickoff probe position x1 y 1 This will bring the spots somewhere to their subapertures Set the NCU to Simplex position Select Dichroic 50 50 or IR This is normal for mirror flattening Switch on the White light lamp Set the white lamp iris to 0 Go to the Segments panel 2 Centre the pickoff probe more precisely Open the SG loop select all segments and press Midrange button This will bring the mirror to the nominal position Use Auto centre button to centre the pickoff Close the SG loop 3 At this step there should be a Shack Hartmann pattern displayed on the GUI The preparation sequence should have positioned the pickoff probe so that the pattern is centred on the image display If the central 4 spots are not within their subapertures you must move the pickoff probe so that the spots are at least roughly centred 4 a For practical reasons it is often desired that the flattening procedure starts by using previously stored mirror shape which was known to produce good quality PSF In t
26. dowing Set temperature 40 Actual temperature 39 7 C Shutter shut Open Binning 1 y EMCCD gain 20 x Clocks idling Object name Multiplicity 1 x Run Arc Flat Dark Bias Run number 1 Illustration 13 Non common path error correction panel The final mirror alignment stage is done to remove the remaining non common path errors i e the difference in the optical aberrations between the WFS camera and the science camera This is done from the Simplex panel which is named after the numerical algorithm used to optimise the image Again as in the case of AutoWhite the algorithm is the same as in the original NAOMI However the user interface has changed quite significantly Running simplex procedure The left side of the GUI contains the image viewer and buttons to start or stop the procedure The values of the measured parameters are displayed while the procedure is running As with AutoWhite the instrument has to be configured before the procedure is started Camera selection and image viewing The right side of the GUI consists of a general purpose image viewer for any on the AO related cameras AG3 OASIS INGRID and LUCKY It is possible to change between them easily using the combo box If the camera server is not available this will be indicated in the server status INGRID and LUCKY can be used for removal of the non common path aberrations For each camera the readout window and binning factor can be defined The exposure
27. e system is actively controlling the DM The pistons are largely magnified in this presentation It is possible to record the current DM configuration and use is as a reference so that only offsets to that are displayed WFS The WES widget allows control of the pickoff probe related mechanisms the lenslet array and the WFS shutter The shutter can be either open or closed The lenslet wheel can be moved to any of the named positions The mechanisms start to move after the named position is selected in the combo box The user tab allows entering of the pickoff probe positions in arc seconds OASIS mirror The OASIS mirror redirects the light either to INGRID when out or to OASIS LUCKY when in It can only be in one of these two positions To move the mirror the target instrument is selected from the combo box The current position is displayed next to the combo box In the brief moments during the mirror movement the Current position displays the status of the mechanism e g Moving Dichroic The dichroic widget shows the currently deployed dichroic and allows selection of other dichroics parking the mechanism or its initialisation When a specific dichroic is deployed in the light path it shows a schematic representation of the transmittance curve which is a useful reminder of which dihroic is currently deployed Lucky mirror This widget works exactly the same as the OASIS mirror except that it directs the light either to OASIS mi
28. egments using white light interferometry 3 Removal of the non common path errors using simplex optimisation of the spot on the science camera In the original NAOMI system step 1 is performed using a laser double pass interferometer called FISBA and a special software called FisbaGui This method is very sensitive both in positive and negative way The positive side is that it can align segments very well On the negative side it is very sensitive to any vibrations present on the optical bench and requires for operation that the optical bench is floating on air cushions Although the software procedure which aligns the segments does its job quite quickly the process of floating and then fixing the bench takes about 10 15 minutes In contrast to this aogui uses spots on the wavefront sensor to align the segments This method is much faster and does not require to float the optical bench The cophasing step known as AutoWhite has been adopted from the original NAOMI software Previously this has been a command line application while now it is integrated into aogui Removal of the common path errors is done by a non linear optimisation method known as simplex The mathematical part of this method is also the same as in NAOMI but the GUI is new and is also integrated into aogui Aogul includes light path monitoring and control Finally the observing interface is also enhanced by including control of the autoguiding and status of the telesco
29. ement between steps KA None None Is the application started in engineering mode 0 500 None None The gain useg in final centering software Electra save flat None None The directory where DAC values of flats are stored 0 3 None None The fore optics position 300 7200000 Exposure time 501 16384 Window height 501 16384 Window width 4821 16384 8 Window upper left corner x 580 1 16384 Window upper left corner y f195 1 1 None None Name of the lenslet wheel positionto be read from the database If a number use th 0 5 None None The maximum distance in pixels between two objects to be considered the same 1 None None The maximum number of attempts for one selection of segments 5 None None The maximum allowed travel rate 3 None None The minimum number of objects needed to confirm motion 0 3 None None The minimum allowed travel rate 1 None None The number of images taken to average spot parameters 6 None None The number of steps when moving the segments 101 05 None None Symbolic name of the NCU position value is retrieved from a database Ifa number 300 17200000 Exposure time 500 1 16384 Window height 500 1 16384 Window width 11 16384 Window upper left corner x 11 16384 Window upper left corner y 1 85 None None The pickoff probe position in x 0 49 None None The pickoff probe position in y lao None None Offset of pupil centre projection to the image in x direction unit pixels 40 None None Offset of pupil centre projection to the image in y directi
30. enoted by d to the mirror control system From this we calculate the strain gauge response a and the mirror control system changes the actual final demand until the desired response is achieved 138080 Decrease Incresase X Average 13208 f 13480 13680 138800 148080 14280 Strain gauge feedback ADU 14480 14688 14880 1688 2668 3668 4668 5668 6888 7081 Raw DAC position ADU Fig 1 Response of an actuator ot increasing green and decreasing red values of the DAC demand The blue line represents a fit to the average Appendix C Setting up the terminal server daemon In order to allow aogui to send commands to an open terminal window it is required to have a running program a user root which inserts characters into the keyboard queue This program is started automatically by the operating system At the moment of writing this documentation the mechanisms of starting programs at certain events is managed by the system called upstart As it is being developed quickly there are different ways how to use in different Linux distributions On Fedora 11 the configuration file is in directory etc event d and is called terminalServer On some newer distributions the configuration file is in directory etc init and is called terminalServer conf In both cases it has the same content given in the frame below Obviously the program teminalServerXML must exist and be executable in directory usr l
31. ff probe so that this offset becomes zero No segment needs to be selected for this action This action is useful to obtain an approximate pickoff probe position when we start mirror flattening from scratch or when we want to recover the pickoff probe position after 1t has been moved Centre spots Mirror alignment based on spot centring replaces mirror flattening using FISBA interferometer Once the mechanisms are configured and the spots are within their subapertures it is necessary to select the the segments which we want to centre on the Segments page on the right side ofthe GUI Typically these will be all segments The selected segments turn green on the GUI Then click on Centre spots and in few seconds the spots will be centred This procedure uses a fixed number of iterations while centring the spots If it looks that some of the spots are not well centred simply repeat the procedure As a matter of fact the spots are not necessarily simply centred instead they are brought to their offset position The offset in context means the distance of the spot from the subaperture centre In practice there has been little evidence that 1t really makes a difference whether the spots are exactly in the centre or slightly off There the offsets can always remain 0 Calibration panel Aogul allows certain calibration actions As they are potentially dangerous for regular operations these actions are only enabled when aogui is in the engineering mode
32. his case we load the mirror by clicking the Load mirror button and selecting the required file from the file selector b When we want to start from the relaxed mirror zero volt demands we click on Select all and then Midrange Note again that the SG loop must be closed at this stage 5 Finally to flatten the mirror click on Select all and then Centre spots If it looks like the spots are not well centred simply repeat the step 6 Check that none of the spots is missing or is not centred In this case you must bring the spot to its subaperture by selecting it alone on the GUI and move it around by pressing on the controls For details of how do this refer to Moving the segments manually 7 Save the DAC values by clicking on Save mirror The values will be stored automatically with current time as the name White light flattening The white light flattening procedure is very simple to perform The spots must be centred and have the SNR of about 70 100 This is achieved by setting the iris to 0 and the exposure time of the WFS camera to 50 ms The dichroic must be either 50 50 or IR Select the AutoWhite tab on the GUI After that just press Start and wait until the procedure finishes The new mirror configuration is applied to the DM but it is not saved You must save the configuration by clicking on Save mirror Removing non common path errors The non common path errors are removed after the AutoWhite procedure has been finished Go
33. ltip window may not appear or will be flickering if the application window is not entirely contained on the desktop Wavefront analysis using Zernike decomposition Aogul is able to reconstruct the wavefront using spot offsets from their nominal position which is usually the centre of the subaperture The wavefront reconstruction is done using Zernike decomposition based on the slopes inferred from the spot positions The values of coefficients are presented as numbers or as bars in the Wavefront statistics panel In addition the reconstructed wavefront is drawn on the GUI Calibration of strain gauges Calibration of the strain gauges should only be performed by trained people who understand well the consequences of changing the parameters of the system and are able to detect and correct possible error while calibrating This action need to be performed sporadically after the AO system underwent changes in environment such as humidity and temperature The calibration itself is very simple No light source is necessary as the procedure is not analysing the images Simply press Cal Actuators button and wait until the procedure finishes The progress of the procedure is printed in the terminal window indicating current step in the procedure During the calibration all segments are moved in piston by applying DAC final values from 1000 to 7000 and then back The gain and offset for each channel are calculated using expressions in Appendix
34. mmunicating it needs to be restarted This is done in a terminal opened under naomi account on aocontroll by NaomiRestart aocontrol1 This command often fails to complete Diagnosis Verify if the Python error message as shown below appear after restart SendBoot 4 9 software Electra bin c40Diag x40 Booting Strain Gauge C40 Ring host aocontroll DynSendBoot DynSendBoot DynSendBoot DynSendBoot DynSendBoot DynSendBoot DynSendBoot DynSendBoot 0 12 software Electra bin SGBSP2 x40 0 13 software Electra bin SGBSP2 x40 0 15 software Electra bin SGBSP2 x40 0 18 software Electra bin SGBSP2 x40 18 11 software Electra bin SGBSP2 x40 13 14 software Electra bin SGBSP2 x40 15 16 software Electra bin SGBSP2 x40 14 17 software Electra bin SGBSP2 x40 Target CPU failed to respond Traceback innermost last File software Electra bin c40Run line 22 in c40Run Run config verbose 1 File software Electra lib python c40Run py line 51 in Run SGlib Run SWconfig verbose File software Electra lib python SGlib py line 1361 in Run SGring Boot SWconfig File software Electra lib python RTlib py line 108 in Boot c40Boot BootNet bt File software Electra lib python c40Boot py line 74 in BootNet BootOne fromCPU toCPU programs toCPU File software Electra lib python c40Boot py line 58 in BootOne raise error Exec d program returned an error Boot error Exec d program
35. n 12 AutoWhite panel After the spots are centred within their subapertures the segments need to be put in phase This is done by the procedure called AutoWhite The procedure is almost entirely based on the original NAOMI code however it is integrated in another panel within aogui Controls are very simple The procedure can be started by clicking on Start button and when it is running it can be either paused or stopped Results of the processing are written in the panel The resulting new mirror configuration is not automatically saved on disk This must be done manually No configuration changes in the instrument take place before the start of procedure This also has to be done either manually or by running an appropriate script within the sequencer Simplex panel Segments Zernike Overlays Auto levels Min Display images Spot parameters x N A y N A Maximum value N A Total intensity N A Simplex controls Start Cycle number N A Last maximum N A Parameters Status Sequencer ANDOR1 0 Max 300 FWHM max N A FWHM min N A No of bright pixels N A Elapsed time N A Last merit N A Best merit N A Realtime AutoWhite Simplex Light path Simplex GUI 1 0 0 8 0 6 0 4 0 2 0 0 1 0 0 8 0 6 0 4 0 2 0 95 02 04 06 0 8 1 0 Camera controls Camera ANDOR1 gt Server status OK PNB status OK x 248 y 208 Centre light w 42 h 42 Exp time 50 ms Use win
36. n a chronological order so it is usually best to press on Modified column label to reverse the order and so access the latest flat files more easily Load raw This command is not likely to be used in normal operation Please read about the distinction of two types of DAC values demands and final values in the Glossary Save mirror Both current DAC demands and the final values are saved to disk No file selector is presented Observing panel The observing panel is used during observations It allows control of the AO loop and of the telescope autoguider I also shows the status of the telescope and the autoguider Calibration Observing Adaptive optic lt lt AOGGpISTOPEN Telescope contro Status Mode MN Guide pixel o o Packets Control Start guiding Can t send packets Illustration 5 Observing panel Adaptive optics Close loop Open loop The adaptive optics loop can be open or closed using this button The label depends on the current state of the AO loop When the loop is open the button will have a label Close loop and when the loop 1s closed the button will have a label Open loop Static aberrations Note that this still needs to be tested on sky so this option has been disabled Telescope control Start guiding Stop guiding This button sends Autoguide on off command to the TCS depending on the current state If the telescope is not the state which would allow
37. nd offset ValueS oooonnccnoncnnonoconcconnnconoconncnnn conan nonn non no cnn n conan nannnnss 45 Appendix C Setting up the terminal server daeMON oooonoccnocccoocononaconncooncconncnnn ccoo ncnnnnnncnnnn cn ccnnncaconnos 46 PA A 47 RR E 48 DAG em atid ner a o AA ANG 48 Hina mad Se RO ECR er oS ee ee ee eer er eee 48 BILANGAN a aaa aan naa kanaan apa a kh 48 a O 48 WI PA APA 48 Introduction NAOMI the adaptive optics system at the WHT has undergone a major upgrade of the real time image analysis computer and of operational procedures In addition a new user interface application called aogui has been created to support new calibration and observing modes and to control the system This document describes the functionality of aogui and provides tutorials for the tasks which are performed by engineers and observers to prepare the system for observations and to actually perform observations In addition a troubleshooting guide is added which extends its reach to other components of the AO system Main differences between the old and the new operational model are outlined in the following paragraphs One of the most important tasks in preparing the NAOMI adaptive optics system for observations is optimisation of the deformable mirror DM so that it produces a diffraction limited spot on the science camera Generally the process consists of three steps 1 Co alignment of the DM segment normals with the optical axis 2 Co phasing of the s
38. nicates with external processes using DRAMA However all communication from the clients is done using CORBA via software interface called corbaDramalnterface
39. nonn nora nonnnos 33 Wechanisnis are NOIA A AER AA EA 35 OU AA AR onl E aa andes 35 POG stops TESPONGING ras aa adan a a AGA GNG NATAN 35 AOGUI gets stuck or is very SIO We sd a is 36 NA AA NAK 36 Some or all segments are extremely inclined and can not be moved eeeeeeeeeereees 36 The real time system refuses to change the camera readout mode or speed 37 The SG loop can not be closed or opened OT oooooccniccccocononnconnnconccnonononcconnncnnconnccnnncnnnnnnos 38 Segment fringes on the Segment page are static even if it is implied that the SG is closed the SG button has a command Open Oki id nan G AKA ia 38 Segments can not be moved manually aanak aag In La kas na 38 Try to open and close the SG loop Check that the fringes move when loop is closed Load the latest mirror configuration Load Mirror oooonnccninccionononccononnccnnnnnccnnnnnnnnnnnnnno 38 Real time system computer aopc1 NOtTUNNINB oooocccocccooccconoconnnonnncnnncconononnnnncccnnnoncnnnnnoo 38 Real time process on aopel not TUI a GA AIN KAGANAPAN GANANG 39 NaomiRestart aocontroll does not finish properly oooonocnnnconincononononnconnnconccnononancconnncnnn 39 Autoguider status is Error and shown in Ted ma AABANG fed 42 Harmless messages in the terminal a 42 APPENdIX A A GAGANA 44 Calculation of fringes on THEMES ala BANGKA DAANG AN ANAN 44 PPP CTI Brain ANG aaa ene niei naka TA na a ANAN LAAN 45 Calculation of strain gauge gain a
40. obe control 10 17 26 36 46 56 65 72 Da L 18 27 37 47 57 66 x Y Apply 2 z 2828 lianiloss Current position Last image received at 2013 01 25T16 50 42 x Y Auto levels Min o Max 300 Show live info selectall Deselect all Toggle all No response Midrange Zero pistons Open SG loop Lamp on Fringe sources e Raw ABC Take zeroset values Demand ABC Subtract zeroset Tip tilt piston Spot Zrotation degrees o eg Piston magnification Calibration Observing Prepare Centre pick Centre spots Cal responses Cal actuators Cal pickoff Save offsets Load offsets Zero offsets Load mirror Load raw Save mirror Current flat file Current offset file Zero Quit Illustration 2 Aogui after starting up On the right side there are different utility windows which allow finer control or monitoring of the AO system Changing between these panels is by using tabs in the upper part of the GUI Big messages Under the WFS image is a panel with big messages These are selected essential parameters of the AO system which must be within certain limits or have specific values to allow safe observing with the AO Generally the loop can only be closed if all messages are on a green background Illustration 3 Big messages Operational control panel The main actions on the AO system are performed from the control panel which located on the bottom of the main panel There a
41. ocal aoSoftware bin If it is stored in any other location the configuration file must be changed accordingly terminalServer start on runlevel 345 respawn exec usr local aoSoftware bin terminalServerXML py Glossary DAC demands These are the values submitted by client applications to the mirror controller and have the same range as final demands see below When the application submits the demands and the strain gauge loop is closed the mirror controller moves the actuator until the value which is read out from the strain gauges corresponds to the demand value The feedback value is calculated with a linear transformation from the ADC value using previously determined calibration coefficients Final demands These are actual values in DAC outputs so they are directly proportional to the voltages applied to the actuators In the closed loop operation these values are constantly changing Strain gauges These are electromechanical components which change their resistance proportionally to the strain They are used to assure more linear response of the actuators For proper operation they require very stable temperature and especially humidity which should always be between 30 and 40 Yo Shack Hartmann A type of WES which senses the wavefront using an array of small lenses WFS Wavefront sensor is an optical device used to measure wavefront aberrations TCS Telescope control system Commu
42. on unit pixels 30 4 None None Pupil radius on the DM in the unit of pixels 1 212e 6 None None Pixel size in radians software Electra save rawFlat None None The directory where raw flat files are stored 4 None None The minimum area of a blob to be accepted 5 None None The threshold for light detecion in sigma units 515e 9 None None The wavelength for which the wavefront error is calculated Status Active Name Curr value Set value Tolerance Status Action Illustration 9 System status panel The status page presents live status of mechanisms and services which are used by aogui As this page has been designed when the scope of aogui was much more narrow it does not currently provide the range of useful information which required for the variety of use cases It should therefore not be used for observing Sequencer Note 14 5 2010 This has not been sufficiently tested yet within the spotAlign environment It does not work well if the sequences are executed repeatedly which is normally not needed Sometimes it appears to cause too many open files error and spotAlign must be restarted in this case Segments i Zernike Parameters Status Sequencer Real time AutoWhite Simplex Light path Step Action getOasisHatStatus getSGloopStatus ncuNeonLampStatus ncuContinuumLampStatus getDichroic 1 Prepare for optical flattening on CCD39 1 Set WES lenslet to 8x8 good seeing None None None 1 Pre
43. pare for optical flattening on CCD39 2 Select white light calibration lamp on the NCU unit None None None 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 1 Prepare for optical flattening on CCD39 Switch on white calibration lamp Set iris for optical flattening Switch off continuum lamp Switch off neon lamp Switch off helium lamp Put OASIS flat in Put LUCKY flat in Select dichroic 50 50 Configure WFS for CCD39 Open WFS shutter Close SG loop Set exposure time for White Light procedure 1 Prepare for optical flattening on CCD39 15 Set readout mode 80x80 Run Stop Pause Continue Next Skip Reset sequence Reset current step Compact view Illustration 10 Sequencer panel Real time control panel From the real time control panel it possible to monitor and control the PC based real time system Configuration A set of working parameters which define the behaviour of the real time system is defined as a configuration Itis possible to define different
44. pe This document describes application deployment and the user interface functions Users interested in practical use should follow the tutorials in this manual Deployment Aogul is written in Python and uses wxPython GUI framework There are many source files which are part of the application In addition to this aogui also uses many external libraries Due to ING s transition to the PC Linux operating system the application is only targeting this platform The application runs on one of the aodisplay computers which will be either aodisplay2 or aodisplay1 The application is installed locally so it is not deployed through the OSCAR software control system Aogui depends on several services files and applications e To communicate with the remains of the C40 based real time computer RTC an application AOServer must be running on the AO host machine aocontroll The communication between aogui and AOServer is by CORBA framework AOServer is a Python application and uses NAOMI libraries to communicate with the C40 RTC aogui will recover and reestablish connection if AOServer is restarted so there is no need to restart the GUI itself Exception to this is the very invocation of the application In case whern aogui is started and AOserver is not running there will be an error message in a graphical window the application window will appear e The CORBA name service omninames for this application is running on whtcns ing iac es alias for
45. r example after a simple reboot via a shut account Diagnosis Aopcl does not respond to ping Recovery Power cycle the camera s power supply which is at the bottom of the middle rack in GRACE electronics room and reset aopcl again A solution is in preparation to allow remote power cycling of the camera and some other controllers in GRACE For controlled shutdown we have set up a script which stops the camera before the computer reboots or shuts down Verification Aopcl responds to ping again Real time process on aopc1 not running Rate of incidence Very rarely Summary The real time process on aopcl may not be running Scenario This may happen for various reasons possibly because the camera controller is off faulty or is not connected to the computer Diagnosis Aopcl responds to pings but all big indicators on aogui are either red or orange Recovery The simplest solution is to log into aopc1 with ssh using shut account and reboot the computer The real time process should restart again automatically after reboot Verification The bottom two big indicators Camera framing and Conf configuration should be green The image in the WFS image panel should be changing NaomiRestart aocontrol1 does not finish properly Rate of incidence Frequent Summary When the command NaomiRestart aocontrol1 on aocontroll machine is invoked the procedure doesn t finish Scenario When the C40 system stops co
46. rain gauge response changes because of environmental reasons such as big humidity swings The files which are changed after executing this procedure are software Electra save StrainGauge calOffsets and software Electra save StrainGauge calGains No light source is needed to make this calibration After clicking on Cal actuators aogui will open the strain gauge loop apply different DAC demands read the strain gauge values and calculate the Hans on anihan the two kang Dog takes few minutes PN a EU AI The progress of the procedure is seen in the terminal window The GUI progress indicator has been suspended temporarily because of occassional communication probelems Calibrate pickoff probe By calibrating the pickoff probe we mean recording of current spot positions in the central 4 subapertures These values are later used in the pickoff probe centering The spot positions are recorded after clicking on the Cal pickoff button This action is performed only after a good quality spot is obtained on the science detector The calibration source must be on and bright so that the SNR of spots is as high as possible but care is needed that they are not saturated Mirror and spot configurations Note that offsets are not practically need so they should be always kept at 0 Load mirror By clicking Load mirror a file selector is presented which allows loading of previously saved DAC demands The file selector presents the files i
47. re two tabs one for calibrations and the other for observing Calibration Observing Prepare Centre pick Centre spots Cal responses Cal actuators Cal pickoff Save offsets Load offsets Zero offsets Load mirror Load raw Save mirror Illustration 4 Calibration panel Before any calibration or observing task is performed it is necessary to configure several mechanisms and instruments There are some other tools at the ING useful for this task such as Obstool however it is the idea of aogui to be eventually self sufficient and to improve efficiency by removing the need to use any other applications for the basic functionality it provides Configuring will be done using the sequencer tool however in the current version this operation is not yet supported because the actions have not been defined For this reason the following paragraph is obscured KAXCORAGRIDE XD ADO AVEO RICA NANN KOK KOLA DA MA TOKEX AER ANDE CN NIKKO BAK APPO SONUENOE XK KE ATA WK KAIXDAKINK OX N KKAPPIK NIKON MAKKAH EX OAK TX AX XN DEX IK RAG XK XIENEN KOPRENEN KONO DX SENDER OOK IDO UNNE ODO IDEAR XDD Centre pickoff probe Practical use of aogui has proven that this action is actually rarely need to be used so it is marked with strike through effect Auto centre The Auto centre button is used to centre the pickoff probe in the wavefront sensor Aogui will calculate the current average offset of the spots except central 4 and move the picko
48. returned an error aocontroll Recovery Local and remote Naomi services restarted There is no solution other than to repeat the restart command until it succeeds Sometimes it may take 20 30 attempts Kill AOServer by control C in the window where it is running When the restart succeeds start AOServer again Verification The output from a successful restart should look like this ending with Recording configuration Booting Wavefront Sensor C40 Ring and diagnostic CPU host aocontroll DynSendBoot 0 2 software Electra bin NaomiGenericBSP x40 DynSendBoot software Electra bin NaomiGenericBSP x40 DynSendBoot software Electra bin NaomiGenericBSP x40 DynSendBoot software Electra bin NaomiGenericBSP x40 DynSendBoot software Electra bin NaomiMirrorBSP x40 software Electra bin NaomiGenericBSP x40 0 3 0 5 0 8 DynSendBoot 8 1 software Electra bin NaomiGenericBSP x40 34 DynSendBoot 5 6 7 DynSendBoot 4 software Electra bin NaomiGenericBSP x40 CPU 8 is alive CPU 7 is alive CPU 6 is alive CPU 5 is alive CPU 4 is alive CPU 3 is alive CPU 2 is alive CPU 1 is alive DynSendBoot 4 9 software Electra bin c40Diag x40 Booting Strain Gauge C40 Ring host aocontroll DynSendBoot 0 12 software Electra bin SGBSP2 x40 DynSendBoot 0 13 software Electra bin SGBSP2 x40 DynSendBoot 0 15 software Electra bin SGBSP2 x40 DynSendBoot 0 18 software Electra bin SGBSP2 x40 DynSendBoot 18 11 software Electra bin SGBSP2
49. rror out or to LUCKY mirror in Filter focus The filter focus mechanism is moved by a motor which can be controlled from this widget The focus position can be selected either from a list of named positions or by manually entering a number The focus moves when a named position is selected or the return key is pressed Camera widget In the bottom right corner of the light path panel is the science camera widget It shows important status information from the science camera which is currently in the light path The name of the camera is calculated according to the positions of the OASIS and Lucky mirrors Tutorials Starting and quitting the application AOGUI runs on AO display computer such as aodisplay2 The observer must log in as user whtobs AOGUI is started by typing aogui in a terminal window There may be other instances of aogui running anywhere on the network There should be no interference between these instances when they are just displaying information Any change in the AO system which is monitored by aogui is reflected in all GUIs However when complex operations are started such as calibration of actuators no such action should be started in other instances as no interlocking of mechanisms is implemented Under realistic usage scenarios this should not present a problem To quit aogui press the Quit button and confirm your decision Alternatively it is possible to kill the window using standard X Windows actions or by
50. s Make sure to close the SG loop after that and load the latest flat again Verification Check that you can move the segments manually or configure the DM using Load mirror button The real time system refuses to change the camera readout mode or speed Rate of incidence Medium Summary When on the Real time page or Light path page the requested configuration change doesn t happen Scenario This typically happens when the current exposure times are very long in order of seconds Diagnosis After the change of configuration is requested which typically includes a change of the exposure time nothing happens and the system continues with the same readout mode Recovery Sometimes the change is just very slow Allow 10 30 seconds to make sure that the change takes place Try to change the mode few more times If the problem persists use Stop button on the real time page to stop framing and when it stops issue the command again If even this doesn t help restart the real process by using the Kill button on the web based GUI at http aopc1 tiptilt dm_controlGUI html In this case you will have to reload the DM configuration Verification Check that the system is running with the required readout time and mode The SG loop can not be closed or opened or Segment fringes on the Segment page are static even if it is implied that the SG is closed the SG button has a command Open or Segments can not be moved manuall
51. s not detect that the wheel has not reached the intended position yet and continues with further steps Diagnosis The WFS mechanisms behave erratically as described above The status in the WFS widget on the Light path page stays in Error red or Busy blue The Epics engineering GUI of the pickoff probe also shows Error or Busy status without changing to IDLE Recovery Go to GRACE electronics room Switch off the naomiomc VME based control computer green switch in the middle rack Switch off the two motor driver units green switches protected by transparent plastic cover Wait 30 seconds Switch on the motor drivers Switch on naomiomc Wait until the green LED on naomiomc comes on Go back to the control room and from aogui reinitialise the mechanisms and then put them to their working positions NAOMIOMC computer sj power switch Motor drivers power switches Verification Check that the operation which was failing before now works Mechanisms are not initialised Rate of incidence Very rarely Summary Some or all of the mechanisms are not initialised Scenario This kind of fault does normally not occur unexpectedly Typically this may be the consequence of a either scheduled or unexpected power cut in GRACE normally it is protected by a UPS or somebody power cycling the control computers Diagnosis The mechanisms appear uninitialised Recovery On the light path page of aogui hit the Init buttons of
52. s using turbulence simulator or on sky tests There are some other parameters related to the reconstructor which are presented in the GUI but can not be changed because they relate to physical properties of the electrical mechanical and optical systems and are therefore constant until the components themselves change Camera control The WFS camera has few parameters that can be changed Normally they should be changed as a part of configuration The basic operational parameter of the camera is the readout mode There are four readout modes Naomi mode 80x80 is the usual readout mode and allows frame rates up to 137 Hz Naomi mode 40x40 is a binned readout mode with 40x40 pixels and is intended for fast framing applications The maximum practical frame rate is 270 Hz Above this limit the C40 processors in the SG ring can t handle the incoming data anymore and crash Tiptilt mode 40x40 is identical to Naomi mode 40x40 except for the different header flag which allows the real time computer automatically switch to tip tilt only correction using a single guide star Long exposure 40x40 is just like tiptilt 40x40 except for the way the images are buffered in the controller Illustration 11 Real time process control panel Autowhite panel Segments Zernike Parameters Status Sequencer Real time AutoWhite Simplex Light path Current status Step Action Results This procedure hasn t been finished Start Illustratio
53. time is given in milliseconds In addition for Lucky camera Andor the electron multiplying gain and the cooling temperature can be defined from the GUI To see the light on the LUCKY camera the shutter has to be opened explicitly by clicking on the Open button For INGRID this is not necessary because it doesn t have a shutter When the calibration spot is not in the centre of the image but it is still in the field of view it is enough to press Centre light once or twice and the spot will be centred It is possible to execute run commands from the GUI When pressing on one of the Run Arc Dark Flat or Bias buttons a terminal will be opened on taurus and the command will be executed This assumes that the camera in question is properly configured in the observing system When the terminal window already exists it will be reused It is also possible to type observing system commands into that terminal Light path page Segments Zernike Parameters Status Sequencer Realtime AutoWhite Simplex Light path NCU Last update 2013 11 13T16 29 32 Select position lt Pos Current position i0GSAPIKTOMOST Spectral Iris 200 init He On Ne On Continuum Iris A init Continuum On White light Iris B init White light On WFS Last update 2013 11 13T16 29 33 Close shutter User Engineering Selectlenslet asasan selectienster Pickofrx 0 Pickof Y 8 Real time system Select configuration F1 100 Hz 80 x 80
54. y Rate of incidence Once every few days or week Summary The SG controller regularly blocks all communications after it has been running for several days This seems to be a bug in the old NAOMI C40 based strain gauge controller apparently after some counter overflows Scenario After few days or week of normal operations the SG loop status can not be controlled Diagnosis The system does not respond when the operator tries to open or close the SG loop Segment fringes are static even if the loop seems to be closed Recovery Run NaomiRestart aocongtroll on aocontroll Verification Try to open and close the SG loop Check that the fringes move when loop is closed Load the latest mirror configuration Load mirror Real time system computer aopc1 not running Rate of incidence Very rarely Possible problems restarting the computer Summary Aopcl is not running Scenario This does not just happen spontaneously but there are two possible scenarios which lead to that First would be that there is a power failure in GRACE This is rather unlikely because everything there is connected to a UPS however it has happened before If this happens many more things on the observatory will not be working The obvious solution is to switch on AOPC1 once the power is restored Second scenario is more likely It has been observed before that when the WFS camera is streaming images the computer with the PCI camera does not want to start fo

AOGUI User Manual (NAOMI)

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