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vega_user_manual

1. Test P1 button to see if the server command port is started Test P2 button to see if the server is data port started Test Conf to see if the configuration server is started 6 5 1 General usage Set flux scale area permit to adapt the display according the photon number Set Low Lim Det permit to fix a photon level under which the tracker does not take into account the images GetTkConf allows to contact the central control to get the current tracking configuration to fix parameters to tune to search fringes etc All display could be selected or unselect to improve performances 6 5 2 2 telescopes mode With this mode Only one line is valid in the tracking possibility On this line it s possible to set the position of the TF line One delay line is fixed and one is moving and it s possible to fixe some parameters Before to send a correction to OPLE if the device is not set in manual on the Chara side you have to click on the OPLE Man On button To send a correction to the OPLE fill the text area and click Send To see if the system is working send a big correction than the error position of the delay line becomes important than visible on the Chara control system To move the fix delay line use the same method 6 5 3 3 telescopes mode The same than 2T but more possible lines are validate more delay line could be moved more curve are displayed 6 5 4 4 telescopes mode The same than 3T
2. t 4 Observatoire de la Cote d Azur How to observe with VEGA Author D Mourard Reference VEG PRO 021 Version 20 Date 22 11 2015 File HowUseVega doc Approved by D MOURARD Principal Investigator OCA Reference Version VEGA Dat Page Summary 1 Starting VEGA 1 1 ON SITE OBSERVING 1 2 REMOTE OBSERVING 2 Starting the Graphical User Interfaces 3 Observing 3 1 32 3 3 3 4 3 5 3 6 3 7 3 8 Choose star SETUP VEGA WAITING CHARA READY VERIFY PUPIL amp IMAGE if Yes in the Popup Window at beginning VEGACAMERA HV FLUX OPTIMIZATION VEG PRO 021 20 22 11 2015 2 18 v Co o FRINGE TRACKING this step is not necessary with CLIMB tracking except in case of 4T observations and VEGA tracking on beams 3 amp 4 RECORD DATA ON VEGA 4 EndNight sequence 4 1 4 2 4 3 Electronic amp informatics side Preliminary check take your time to do that Starting the backup on PC DATARVEGA 5 Preparing the data for the reduction pipeline 6 Detailed description of the GUIs almost obsolete and not updated 6 1 6 2 6 3 6 4 6 5 The ICS GUI The TECHCAM GUI Various control GUI M2 M6 Periscope How to use the detector GUI How to use the tracking GUI 7 VEGA Special cases 7 1 7 2 7 3 Telescopes pupil amp image recording only Internal alignment VII 3 Internal fringes 9 10 11 Il Il Il 12 13 13
3. 7 FRINGE TRACKING this step is not necessary with CLIMB tracking except in case of 4T observations and VEGA tracking on beams 3 amp 4 VEGA is now ready for fringe tracking Perform the following actions on the TRACKER GUI x Click on Get Tk Conf and verify in the upper right part of the panel that the setting is correct Telescopes Spectral band beams and delay lines reference cart The Primary Detector is usually used x Check the configuration Reference VEG PRO 021 A Version 20 Date 22 11 2015 VEG ae o SnrTresh box the correct setting is 6 o ConsOPD box 2T 30um in LR 100um in MR 500um in HR 3T MR FT1 100um FT2 200um 4T MR FT1 100um FT2 150um FT3 250um o OPLE man Click on ON o OPLE Offset mm enter the expected value and click on Set Control on OPLE that the corresponding delay line jumps and stabilizes o Do not click on Tracking On at that time o Track Rate in sec set the initial value to Is x Click on Set StartTrack x Then iterate on the following actions to find the fringes o Set the offset in mm and click to SET Scan by step of 200um in LR 500um in MR and 2mm in HR Click on Erase FT1 o Check for fringes on the TF display and on the HF profile plots If necessary adjust the line position PosProfil box x When fringes are detected and SNR gt Threshold click on Tracking ON and then OFF as soon as the command has been sent Wait for a ne
4. DOWN x Click on Get Images on the TECHCAM panel You should now have the display of the pupils check that the two right displays are selected on the IMAGES amp PUPILS DISPLAY panel If not check the configuration of the shutters and of the Periscope DOWN In the TECHCAM panel you can adjust the exposure time default is 100ms and the gain default is 10 If necessary in the IMAGES amp PUPILS DISPLAY for the full resolution image you can adjust the display gain with the vertical slider click on Apply The errors are displayed on each field You can now finely adjust the pupils x Adjust the pupils with the CHARA M10 mirrors XXM10 in the P2 GUI so to centre the central obscuration on the red cross When you are done click on Stop Get IP and then flick the Next Step button Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 9 18 CLICK_NEXTSTEP_WHEN_FLUX_ON_DETECTORS IS_OK 3 5 VEGACAMERA HV VEGA is now ready to switch on the HV gain of the science detector Perform the following actions x Goto the AlgolNewR and AlgolNewB GUI x Click on StartGetImg Some informations are updated and the frame number count should change regularly Click on Display x Click on HT1max and check the number of photons If you reach a flux higher than 3500 photons take into account the local saturation for emission lines use the neutral density with actions on the ICS Console GET_CONFIG c
5. I button when you are done Exit each window with the Close window button Use of this GUI for recording image amp pupil in files Set dirname amp filename with a carriage return after each entry Click the Set DirFile Name button to send information to the server for the following record Save Raw Frame save a movie of 100 frames Save Int 100 Frames save the integration of 100 frames Save Int 1000 Frames save the integration of 1000 frames How to visualize the image and pupil files Retrieve the file 1 2 3 Access PC ICSVEGA through the RDP shortcut on the PC CTRLVEGA desktop Launch the WS FTP application and open the PC DATARVEGA 192 168 3 168 connexion scheme account observe On the left window you have the directory you just created on PC ICSVEGA see IV 2 4 and on the right window you should have the home observe PUPIM data directory on the PC VEGADATAR computer Transfer the directories you need by clicking on the left right arrow Visualize the files 1 DUE ko log on PC VEGADATAR with devpt Regain open a terminal cd PUPIM start idl just type idl in the idl environment you can use any of the following applications Each application shows you the corresponding files for selection Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 15 18 a pup b Ip c filmIm d filmPup 6 3 Various control GUI M2 M6 Periscope 6 3
6. and check the consistency with RedDet src In the pc ctrlvega window data or PC CTRL dataRemote edit all the obslog files o gedit logobs and check carefully the entrances in these files so that they are coherent with the data directories Use the journal of observations for that Check carefully that the spectral calibration directories are correctly attached to the correct data directories o When ok remove the unnecessary obslog files if any Finally proceed to a last control o On pc ctrlvega or PC CTRL Is ltr data o On pce datarvega Is ltr RedDet sre_and ls Itr BlueDet sre o And check that everything is conforming to the journal of observations Check that the last processing of the previous night is ended correctly On pc datarvega check that data tmpauto and data AUTO directories are empty If not copy the files in data tmpauto somewhere and send the error txt file to DM and JMC Remove all entries in these two directories after that 4 3 Starting the backup on PC DATARVEGA x x In the pc datarvega window cd datadisk1 o autoAutomate sh YYYY MM DD retrieve US calern nice if remote operation o autoAutomate sh YYYY MM DD retrieve US local if on site operation All the data are then transferred on datadisk1 with a copy on datadisk2 Have a good sleep When back and if no errors message o cd datadisk1 Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 12 18 o Che
7. the server In case off emergency click on the HV Off button You can adapt the frame display by setting the SetDispCoef area between 1 to 10 and send the value to the server In case of too much photon for tracking you can use the Hline and Vline set of buttons to reduce the area used for tracking Each action on a button moves a line on the frame display In case of distant observing you can select the choice No Display than the frame is not downloaded but you need to have a look frequently to the photon curve 6 4 2 Other actions Click on buttons located at the top of the GUI could perturb the observation scheduling A regular set of actions after a startup is for example Test Detect Photon Only Det Phot amp record LoadDetConfig HV On Stop Start GetImg HV2 Max Generate Dark HV1 increase 6 4 3 Warning message or red light on low level server GUI If the following message Warning hand pad or Light High Voltage was automatically shut off cause of too much light in the optical lab for the intensified detector First verify why too much light and if it s dark Go on the server GUI to click on the button Enable light detection and then HV On It s possible in the optical lab to do the same action by push button on the detector and on the HV rack in the cabinet Reference VEG PRO 021 Version 20 Date 22 11 2015 VEGA a 6 5 How to use the tracking GUI First click on
8. 1 M2 M2 picomotor are located on the periscope The xpico6 or PICO PERIB1 or M2 GUI permit to move picomotor of the previous generation than the M6 one The step size is positioned in the text box Smaller amp Bigger change the step value Left R U D button apply a move in the right direction Go Back made a return to the original value of all axis 6 3 2 M6 M6 picomotor are located on the Vega IOP table Same strategy than M2 motor All movement is recorded in a file in the M6Server directory 6 3 3 Periscope A very simple GUI with mainly a Up amp Down button 6 3 4 Shutters Use only the B1 to B4 button to close or open the shutter of the according choice Reference VEG PRO 021 E A Version 20 Date 22 11 2015 VEG ae 6 4 How to use the detector GUI First click on Test button to see if the server is started 6 4 1 In automatic mode Let the scheduler manage the detector except the following command When the detector is in live mode you can click on Start GetImg This action launches a parallel process which got according to the Refresh speed the current frame and some other contextual information noFrame HV vals Increase HV with the double or simple arrow and take care that the photon number in the curve area doesn t exceed 3500 It s possible to change the scale of the curve by modification of the text area near the SetPhotScale button Click on this button to send the value to
9. 14 LS 16 17 18 18 18 18 Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 3 18 1 Starting VEGA e For all the computers you must use the login observe same as for the CHARA computers and the password t0010ng e At least 48h before observations send the complete information about telescopes POP beams and observers at the CHARA group setup chara array org and get the information about the night assistants that will operate the array e At least 24h before observations switch ON all computers and the Chiller see later e At least 30mn before observations switch ON the thermal regulation of the detector see later e CHARA Control Room 00 1 626 796 8468 e VEGA Control Room 04 93 40 54 28 Calern e SKYPE Chris farringtOn Nic nic scott 9 Olli Olli majoi Norm norm vargas1 Fr d ric live fredmotard Denis denismourardobs e CODE porte GI2T C8506Y 1 1 1 In the control room control s computers 1 Logon on PC CTRLVEGA 2 Start the applications controlling the electronic alimentation click on RUN when a window appears a 2 With the user interface PowerControl first click two times on status and switch on successively ICS TechCam PCs Chiller OptiLab HVRed and HVBlue this application has the responsibility of sharing the information to all the applications Launch confServer in a terminal 1 1 2 Starting the VEGA CONTROL SOFTWARE On
10. 7 are skipped as well as the Next step in the Record Data On Vega situation DO NOT FORGET to close the shutters B1 B2 B3 and B4 before starting the calibration to avoid pollution of the calibration by stellar light Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 11 18 4 EndNight sequence 4 1 Electronic amp informatics side 1 On the five 5 GUI AlgolNewR AlgolINewB TRACKER TECHCAM and finish by ICS use the button gt to shutdown all the server programs Close the windows if they did not disappear by themselves 2 Click on P on the ControlGui and then close the CONTROL GUI 4 2 Preliminary check take your time to do that x Check for the bad data directory on the pc ctrlvega on site or PC CTRL remote o cd data and Is tr o Open a new terminal and log onto pce datarvega ssh Y pe datarvega cd RedDet sre and du sh Check in the first window the list of data directories according to the journal of observation Remove the directories that have been aborted during the observation but check in the second window that their size is small 2 9 Mo usually instead of hundreds of Mo Remove the same directories in the second terminal window and check for consistency between the two directories pc ctrlvega data or PC CTRL data and pc datarvega RedDet src In the pe datarvega window o cd BlueDet sre and du sh o And remove the same directories
11. ICO3 iii Display Periscope Panel cc iv Display Shutter Panel d Organize the GUI so that they are correctly located also on desktop click on Test if KO try resetLightSecurity and Test 6G 2 Start application again 3 Start application StartRedDet click on Test if KO try resetLightSecurity and Test again 4 Start application 4 p gt p gt 5 Start application 6 Put the three terminals windows xt_PrimTrack ALGOLNEW ALGOLR on the right part of the CONTROL GUI with right click and Always on Top 7 If CLIMB is used as group delay tracking start the application climbgtk in a new terminal and espgtk BC1 in order to adjust the cophasing of both instruments For managing the observations it is very useful to start on your personal laptop the JMMC ASPRO2 software and to open the asprox files that have been prepared for the run Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 8 18 3 Observing In remote as for the on site observations all operations have to be coordinated with the CHARA night assistant The Imessages provided by the CONTROL GUI indicate why it is waiting When you have done the action that the program is waiting you should confirm that the observation could continue by clicking on the Next Step button 3 1 Choose star On the CONTROL GUI on desktop 1 begin by Select File and then Choose a star in the combo box Cur
12. art the application StartPwdGuil on the desktop With the user interface PowerControl first click two times on status and switch on successively ICS TechCam PCs Chiller OptiLab HVRed and HVBlue These three applications are kept ON during a whole remote run as well as all the subsystems 1 2 2 Starting the VEGA CONTROL SOFTWARE On the desktop of PC CTRL identify the various shortcuts called RDP xxx Each shortcut allows to remotely access any of the VEGA computers located in the electronic cabinet Use them successively to log on each of the following computers 1 2 2 1 SSSI With the RDPTrackerIcsTechcam shortcut log in on pc icsvega Then start the Instrument Control Software with the shortcuts on the desktop and TRACKER Wait for the end of the init sequence on ICSVEGA and check for the message StartSpectroOK Do not forget to check the date and time of the computer When done close the Remote Desktop Connection window 1 22 2 ROBREIDE lt RBEBIEDS On each computer after login start detector software Verify in the Det State field in control vegaDet window that the correct detector is detected on the corresponding computer RedDet amp BlueDet If the Light Alarm is red then click on the button Restart Light Security If no effects check that the light is OFF in the lab Open the data src directory and check that it is empty as for the trash The p
13. but all capabilities are used Reference VEG PRO 021 EGA Version 20 Date 22 11 2015 V ae 7 VEGA Special cases 7 1 Telescopes pupil amp image recording only Start ICS panel amp check if server is ready by test server amp get status Open TECHCAM panel display image amp pupil panel GetConf on the ICS panel Verify if there is no lamp on no green light only yellow Set IPS down image amp pupil sensor Check if CAU is UP Set Image amp pupil neutral density in open position Send config amp wait that the status become OK_READY Set gains On live and look if there are pupil amp image on according panel Use panels as describe in II 1 b including M2 M6 periscope panels 7 2 Internal alignment Use the same method than before but put the CAU down and put the white lamp at the place of the laser and switch on the punctual source 7 3 VIlI 3 Internal fringes
14. ck whether datal or data2 is the current archiving disk then ep R YYYY MM DD data YYYY but check previously the free place on data du sh If pb ask DM JMC reparing the data for the reduction pipeline x x When the transfer is completed you could prepare the data for the reduction pipeline Perform the following tasks using the datamgr account luneRouge cd datadisk1 yyyy mm dd and identify the directories you want to process including the associated spectral calibration cp R directoryl directory2 data STAR temp cd data STAR temp prepare sh data DISP D_mydisp data GRID GRILLE NULLE 1 VEGA 2T prepare sh data DISP D_mydisp data GRID GRILLE NULLE 4 CLIMB 3T Perform the spectral calibration task using calib software idl idl gt compileCalibGui idl gt vegaCalibGui Sans faire la calibration spectrale diter le fichier inp des repertoires a traiter dans data STAR yyyy mm dd en indiquant une calibration spectrale existante Is data DISP disp Follow the data reduction procedure Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 13 18 Caution From here to the end of the document the description is not updated 6 Detailed description of the GUIs almost obsolete and not updated 6 1 The ICS GUI Respect the following order for a correct use of the application 1 2 Test button to test the connexion with the server Get Status t
15. his button retrieves the high level status and displayed it in the status area If the status is OK_READY you can send command to the server 3 Get Config button to obtain the current ICS configuration 4 5 Configure the devices as you need Send Config and wait the message OK_READY instead of KO_BUSY Reference VEG PRO 021 A Version 20 Date 22 11 2015 VEG ee 14 18 6 2 The TECHCAM GUI 6 2 1 User manual This GUL is first started in the ICS GUI by selecting in the View Menu Open TECHCAM Respect the following order for a correct use of the application 1 2 3 gt D0 ONO 10 11 6 2 2 1 2 3 4 6 2 3 Test button Get_Status Display Images a new window appears to display the image of the four beams On each image the red cross is the reference and the green one the photometric centre Display Pupil a new window appears to display the pupil of the four beams On each image the red cross is the reference and the green one the geometrical centre Power On Img this button switch on the image ICCD detector Power On Pup this button switch on the pupil ICCD detector Live this button launch the frame grabber Get Images button Images Pupils and information are obtained from the server and displayed in the corresponding windows Gaint Gain buttons adjust the intensifier gain off the corresponding detector Click on the Stop Get
16. of the observing report and the information that are entered in this panel are used as inputs for the VEGA data base Use one sheet per spectral calibration 3 Starting CHARA Controls a tiptiltgtk d D500 amp displays the information of the tiptilt tiptilt server should be ON click on STATUS You can also use the SEEING button for a graphic display b opletab amp and Start in Status page It displays the information concerning the delay lines telescopegtk E1 amp for displaying the status of E1 telescope Same for other d weathergtk amp displays statistics about weather conditions on telescopes Do not keep this application open all the time for saving bandwidth Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 7 18 2 Starting the Graphical User Interfaces The following actions are done on PC CTRLVEGA on site observation or PC CTRL remote observation by double clicking on the icons on the desktop or in the top taskbar p gt 1 Start application a Click on Get Config and check for possible errors orange or red LEDs b Inthe View menu of the ICS Window select Open TECHCAM c On the TECHCAM window click on the following buttons and arrange the windows i Display Images and Pupils and click on Display Pupils and Display Image and Pupil for full resolution ii M10s for Pupil PICO2 and TTs for images P
17. onfigure Density Filter SEND_CONFIG x When happy click on No display on the AlgolNewR and AlgolNewB GUI When ready If you have not selected the pupil control at the selection of the observing block go directly to step 3 7 CLICK_NEXTSTEP_WHEN_DONE_WITH_TIPTILT_ADJUSTMENT 3 6 FLUX OPTIMIZATION This operation has to be done after each change of configuration beams telescopes or after a long slew on the telescopes This is done obviously on one detector only AlgolNewR Follow the procedure 1 Select one beam action on the SHUTTERS panel 2 On the AlgolNewR GUI set the Upper Limit to 150 and the Lower Limit to 300 Activate the Display 3 Click on Integrate Frame On and check the vertical centering of the image Adjust with UP or DOWN on the corresponding TTBx panel Click twice on Integrate Frame On to clear and integrate again Adjust Photscale to correctly see the photometry Adjust RIGHT and LEFT of the TTBx panel to maximize the flux Select another beam and perform again steps 3 and 4 Open the shutters on all the active beams Adjust the Photscale and Devalidate the Display Adjust Upper Limit to 100 and Lower Limit to 500 in order to not limit the slit height Adjust Left and right limit so to get a maximum of 1500 photons for the tracking NbPhotTk When observing in low resolution mode the tracking window should not be superior to one third of the window When ready gt SO oe Oy Nn 3
18. r control with the VEGA authorities 50Go of free space is needed for a full night Close the 192 168 3 161 162 Remote Desktop Connection 1 1 3 End of preparation On PC CTRLVEGA 1 Open the data directory cd data and Is and check that it is empty as for the trash The previous data should have been copied into the directory dataSave 2 Install the new StarList files in the directory home observe StarList You can either use a USB key or transfer it by ftp For this use 192 168 3 169 as the IP number for the connection and log with the observe account On PC DATARVEGA 1 Open a terminal window a ssh Y observe pc ctrlvega b GuiObsLog local Use one sheet per spectral calibration maximum of 10 observations Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 5 18 4 For NICE PC CTRL pc ctrlvega2 For CALERN PC CTRL pc ctrlvega calern 192 138 132 111 Initial configuration First log on PC CTRL in the VEGA control room Open a terminal and log on pc ctrlvega by using the command ssh Y observe pc ctrlvega When logged start pwrServer Open a second terminal and log again on pc ctrlvega and start CconfServer If you obtain error messages then start sockman on PC CTRL click on LIST and identify VegaConfServer application kill it and remove it if it exists Start again the application and close sockman then Then come back on PC CTRL and st
19. rent Observation A popup window allows choosing to control or not the Pupil position Do that at the beginning of the night and in case of large slewing of the telescopes or big changes in the delay lines position The information on the GUI is updated and the scheduler automatically executes the Test and Init and GenerateScript phases If everything is ok the scheduler is positioned on setup Otherwise look at the errors on Control terminal 3 2 SETUP VEGA When ready to start click the Run button This will start the observing sequence During this step all the devices of the instrument are set The message is displayed The end of this step is indicated by a message displayed each second in the LOG Box 3 3 WAITING CHARA READY VEGA is waiting that CHARA sends the star light on the selected beams and that delays are available When CHARA is ready click the Next Step button If you have not selected the pupil control at the selection of the observing block go directly to step 3 5 CLICK_NEXTSTEP_WHEN_DONE_WITH_PUPIL_ADJUSTMENT 3 4 VERIFY PUPIL amp IMAGE if Yes in the Popup Window at beginning VEGA is set to control and adjust the correct positioning of the pupils note that the image control is no more available it is done through the flux optimization at step 3 6 x Check that the CHARA shutters are correctly configured according to the VEGA configuration and that the VEGA Periscope is
20. revious data should have been copied into the directory data save If not move the data in a dedicated directory inside data save Check date and time UT of the computer Check the available space on c disk If necessary space below 40Go you could remove some of the data in the data save pies after control with the VEGA authorities Close the 192 168 3 161 Remote Desktop Connection and 192 168 3 162 Remote Desktop Connection window Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 6 18 1 2 3 End of preparation On PC CTRL Check that the remote mounting is ok In a terminal enter mount and find the entrance 192 168 3 169 data on data Same for dataSave for ctrscrut chara and ctrscrut ctrscrut If this line does not exist try sudo mount a and if still unsuccessful reboot the computer Open the data directory and check that it is empty as for the trash The previous data should have been copied into the directory dataSave If not move the data in a dedicated directory inside data save Install the new StarList files in the directory home observe StarList You can either use a USB key or transfer it by ftp with the observe account On your personal computer eventually with an additional screen 1 Open a terminal window on PC CTRL with the observe account 2 Starting a GuiObsLog calern nice amp b This tool aims at writing an electronic version
21. the desktop of PC CTRLVEGA identify the various shortcuts called RDP xxx Each shortcut allows to remotely access any of the VEGA computers located in the electronic cabinet Use them successively to log on each of the following computers 1 1 2 1 RDPTrackerlesTechcam 1 With the RDPTrackerIcsTechcam shortcut log in on pc icsvega Then start the Instrument Control Software with the shortcuts on the desktop s and TRACKER Wait for the end of the init sequence on ICSVEGA Do not forget to check the date and time of the computer When done close the Remote Desktop Connection window 1 1 2 2 RDPRedDet amp RDPBlueDet 1 Oneach computer after login start detector software VEGADET 2 Verify in the Det State field in control vegaDet window that the correct detector is detected on the corresponding computer RedDet 192 168 3 161 amp BlueDet 192 168 3 162 Te Reference VEG PRO 021 Version 20 VEGA Date 22 11 2015 Page 4 18 If the Light Alarm is red then click on the button Restart Light Security If no effects check that the light is OFF in the lab Open the data src directory and check that it is empty as for the trash The previous data should have been copied into the directory data save Check date and time UT of the computer Check the available space on c disk If necessary space below 40Go you could remove some of the data in the data save directory afte
22. w valid correction SNR gt Threshold and do again ON OFF Continue until the residual error is small 20um in MR x Ifthe fringes go in the wrong direction change the sign of the correction in the Coeff box x Set the Track Rate to about 10s and click on Tracking ON Watch if the correction is correctly sent every cycle If not change the track rate or click OFF and continue manually by sending the correction manually as in the centering phase x Note that if fringes are not found you have to check various things o errors of the delay lines should not be larger than 0 01um o check the CHARA clocks Lost T S on the OPLE SERVER Window o check seeing If VEGA is recording alone click the Next Step button If VEGA and CLIMB data are recorded please refer to the VEGA CLIMB document see web page IRECORD_DATA_IN_PROGRESS 3 8 RECORD DATA ON VEGA During the recording fill the diary check tip tilt rO indications and fringes Fill carefully the ObservingLog page and save the observingLog in the data directory of the control computer Use a name in agreement with the denomination of the starlist file Click on SAVE after each end of observation Check the flux the frame number and the block number and wait for the last message You can increase or reduce the number of blocks use NbBlock box and Send button on the Control Panel If the selected observation is a calibration the steps 3 3 3 4 3 6 and 3

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