UT 20130427 Technical Observing - Active Optics Calibration

Observer: JHill, (Tucson) DMiller (home)
Telescope Operator: DHuerta (LBTO)
AO Support: JCGuera (LBTO)
Telescope Support: JLittle (LBTO)
Instrument Support: JMorris (LBTO)

Summary

Looks like single modes Z4-Z22 applied to the AdSec thin shell are seen as single modes by Active Optics (unlike modes applied to primary).

If increase Z11 bending modes from 12 to 20 we do not get Z11 to Z22 crosstalk. Still see Z11 to Z4 crosstalk.

If increase Z22 bending modes from 27 to 40 we still see Z22 to Z11 crosstalk and still see Z22 to Z4 crosstalk.

Increase in Z12, 13, 16, 17, 18, 19 bending modes does not have any affect on crosstalk...still there.

Details

Shapes on AdSec

07:15 Try to put zernike shapes on AdSec Thin Shell

[AOeng@adsecsx ~]$ cd /home/aoacct/AO/current/bin/
[AOeng@adsecsx bin]$ /usr/bin/xterm -i idlterm -e ./terminal

AdOpt>request = fltarr(22)
AdOpt>request[5] = 5.0e-6
AdOpt>print, request
      0.00000      0.00000      0.00000      0.00000      0.00000  5.00000e-06
      0.00000      0.00000      0.00000      0.00000      0.00000      0.00000
      0.00000      0.00000      0.00000      0.00000      0.00000      0.00000
      0.00000      0.00000      0.00000      0.00000
AdOpt>print, fsm_correct_modes(request, /PASSED)
Final command  MAX [m] 6.94797e-05
Offload command  MAX [m] 5.28470e-05
Flat ref command  MAX [m] 5.28470e-05
Fullbias command  MAX [m] 6.94259e-05
FORCE MAX [N] 0.149090
       0
AdOpt>

QED

07:30 These commands work. Tried Z19 (request[18]=0.5e-6) and Active Optics saw 390 nm of Z19. Will collect full data set.

07:45 Modify zernike_collect routines to pop up message rather than send zernikes

08:00 David preset to AO866 on-axis. Run test with new routines

08:30 David preset to AO866 on-axis. Offset 0, 70 to get pupil centered on lenslet (ie subap 7,7 has nearly 0 flux)

08:46 Start data collection

08:50 Restart data collection because sent incorrect Z4. Remove all previous files

09:20 Stopped after Z7 and restarted with LIMIT=400 because having trouble collimating to below 300.

09:40 Added 1000 nm of Z11 when wanted to clear all modes from AdSec. Started at wfsc 94 to 96(?). Stopped, set all modes to 0 on Adsec and restarted with START=11

10:48 Complete full set, Z4-Z22. /home/dlmiller/data/20130427/zernike_adsec

Primary Mirror Primary Mirror Seondary Mirror
(centered on one subap) (centered on two subaps) (centered on one subap)
Applied Crosstalk Applied Crosstalk Applied Crosstalk
Mode Gain Mode Gain Mode Gain Mode Gain Mode Gain Mode Gain
Z4 -1.1     Z4 -1.1     Z4 +1.0    
Z5 +0.8     Z5 +1.0     Z5 -1.1    
Z4 +0.3
Z6 -1.0     Z6 -0.9     Z6 +1.2    
Z7 -1.0     Z7 -1.1     Z7 -1.0    
Z4 +0.4 Z6 -0.3
Z8 +1.0     Z8 +0.9     Z8 +1.0    
Z9 +1.0     Z9 +1.0     Z9 -1.0    
Z4 -0.3
Z10 -1.0     Z10 -1.0     Z10 +1.0    
Z5 -0.3
Z11 -1.7     Z11 -1.5     Z11 +0.9    
Z4 -1.4 Z4 -1.8
Z22 -0.7 Z6 +0.7
Z7 +0.4
Z17 -0.4
Z22 -0.7
Z12 -0.7     Z12 -0.7     Z12 +0.8    
Z4 +0.3 Z6 +0.8 Z7 -0.4
Z6 +0.8        
Z13 +0.7     Z13 +0.8     Z13 -0.9    
Z5 +0.7 Z4 -0.5
    Z5 +0.8
Z14 -0.8     Z14 -0.8     Z14 +1.0    
Z6 +0.4
Z15 +0.8     Z15 +0.7     Z15 -1.1    
Z10 +0.3
Z16 -1.0     Z16 -0.9     Z16 +0.9    
Z8 +1.0 Z5 +0.4 Z4 -0.3
    Z8 +0.9    
Z11 +0.3
Z13 +0.3
Z17 +0.9     Z17 +0.9     Z17 -1.0    
Z4 +0.3 Z4 +0.3
Z7 +1.0 Z7 +0.9
Z10 -0.3 Z22 -0.3
Z18 -0.7     Z18 -0.8     Z18 +0.9    
Z10 +0.7 Z5 -0.3
    Z10 +0.8
Z19 +0.7     Z19 +0.7     Z19 -1.0    
Z4 -0.3 Z4 +0.3
Z9 +0.9 Z5 -0.3
Z9 +0.9
Z13 -0.3
Z20 -0.8     Z20 -0.7     Z20 +1.0    
Z4 +0.3 Z15 -0.3 Z4 -0.3
        Z5 +0.4
Z6 -0.3
Z21 +0.8     Z21 +0.8     Z21 -1.0    
Z22 -0.7     Z22 -0.7     Z22 +1.1    
Z4 +0.9 Z8 -0.4 Z4 -0.3
Z11 +1.0 Z11 +0.9 Z11 -0.3
Z16 -0.4
Z17 +0.3
File: /work/zernike_gains/lfbg/m1_m2/gains/gain_table.twiki
TWiki: http://wiki.lbto.org/twiki/bin/view/Commissioning/Com20130427

Primary Mirror Primary Mirror Seondary Mirror
(centered on one subap) (centered on two subaps) (centered on one subap)
Applied Crosstalk Applied Crosstalk Applied Crosstalk
Mode Gain Mode Gain Mode Gain Mode Gain Mode Gain Mode Gain
Z4 -1.1     Z4 -1.1     Z4 +1.0    
Z5 +0.8     Z5 +1.0     Z5 -1.1    
Z6 -1.0     Z6 -0.9     Z6 +1.2    
Z7 -1.0     Z7 -1.1     Z7 -1.0    
Z8 +1.0     Z8 +0.9     Z8 +1.0    
Z9 +1.0     Z9 +1.0     Z9 -1.0    
Z10 -1.0     Z10 -1.0     Z10 +1.0    
Z11 -1.7     Z11 -1.5     Z11 +0.9    
Z4 -1.4 Z4 -1.8
Z22 -0.7 Z22 -0.7
Z6 +0.7
Z12 -0.7     Z12 -0.7     Z12 +0.8    
Z6 +0.8 Z6 +0.8
Z13 +0.7     Z13 +0.8     Z13 -0.9    
Z5 +0.7 Z5 +0.8
    Z4 -0.5
Z14 -0.8     Z14 -0.8     Z14 +1.0    
Z15 +0.8     Z15 +0.7     Z15 -1.1    
Z16 -1.0     Z16 -0.9     Z16 +0.9    
Z8 +1.0 Z8 +0.9
Z17 +0.9     Z17 +0.9     Z17 -1.0    
Z7 +1.0 Z7 +0.9
Z18 -0.7     Z18 -0.8     Z18 +0.9    
Z10 +0.7 Z10 +0.8
Z19 +0.7     Z19 +0.7     Z19 -1.0    
Z9 +0.9 Z9 +0.9
Z20 -0.8     Z20 -0.7     Z20 +1.0    
Z21 +0.8     Z21 +0.8     Z21 -1.0    
Z22 -0.7     Z22 -0.7     Z22 +1.1    
Z11 +1.0 Z11 +0.9
Z4 +0.9    
File: /work/zernike_gains/lfbg/m1_m2/gains/gain_table_final.twiki
TWiki: http://wiki.lbto.org/twiki/bin/view/Commissioning/Com20130427

Increase Bending Modes

10:48 Preset to AO680, 70 el in NE

10:50 David fix pointing

10:55 preset AO680

11:00 Z11: default is 12 bending modes. Set to 27 and collect zernike_gain with START=11. /home/dlmiller/data/20130427/z11_27_1000

11:02 Stop, remove all files, iif_offset, 0, 70 (to center pupil), collect data. Looks like 1000 nm Z11 = 2500nm Z4 and 0 nm Z22 smile

11:11 Z11, 27 bending, 500nm. /home/dlmiller/data/20130427/z11_27_500

Z12: 10
Z13: 11
Z16: 18
Z17: 17
Z18: 19
Z19: 20

11:39 Set new mode number for Z12, 13, 16, 17, 18, 19 (guider showing0.4 FWHM)

Z12: 20  Still crosstalk
Z13: 30  Still crosstalk, set to 40 for (-), Still crosstalk
Z16: 30  Still crosstalk, set to 40 for (-), no Z16 applied
Z17: 40  Still crosstalk, set to 40 for (-), no Z16 applied
Z18: 40    Still crosstalk, set to 40 for (-), no Z16 applied
Z19: 30 not tried

12:02 Set Z22 bending modes to 40. Event log force adjustment failed. Looks like we got partial application. Still see crosstalk with Z11 and Z4

12:08 Done. David close up.

-- DougMiller - 27 Apr 2013
Topic revision: r5 - 08 May 2013, DougMiller
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