LBBG Commissioning with AGW1: 03 November 2011 UT
Observer: JHill, JHeidt, RPogge (LBTO) DMiller (Tucson) JStorm (Potsdam)Telescope Operator: DHuerta (LBTO)
Telescope Support: RHansen (LBTO)
Instrument Support: JMorris (LBTO)
Summary
Rick wants to switch to taking MODS1 data in this photometric weather with 0.5 arcsec seeing, but we wouldn't let him.
The last X-flip correction (pcsmx) from last night has been verified.
On-axis active optics is now working for both GCS and IDL. Off-axis active optics has passed the initial check, but not detail calibrations. Something is making far off-axis active optics diverge in GCS.
The Focus position on the IRTC (relative to WFS) has been verified.
We started collecting transform data, and uncovered a couple minor bugs in IDL.. We got an initial transform data set of 17 stars on Stone_A2.
Rick processed the data and Jesper made a new transform for us.
We got a set of field data on BS9107 in superb seeing, but had a lot of trouble because the rotator reports ready while it is still moving. There also seem to be some active optics problems (unspecified) with the field_collect script.
We worked a bit on M3 aligment, but didn't find any position better than what we had. We installed our M3 positions into oss.conf to make collimation go faster.
Preparations
cp -p AIP_L_RM_sub11.cfg AGW1_IRTC_RM_sub11.cfg (it had previously duplicated RFBG zernike gains which are different). This was why GCS active optics diverged in coma last night. LBTI has retroreflector on M2 on the right side for continuing adaptive optics calibrations. Michele gave us a patch to PCS related to rotator RPC errors.Details
Open
00:42 Open to some gorgeous photometric weather. T=5.7 degC, D=-33.5 degC, Wind steady at 6 m/sec from WNW. ACQUIRE preset to pointing star. Had to enable RZ collimation (whenever we have the global offset). 01:02 ACQUIRE preset to BS9183 - Why is the star significantly out of focus? This collimation model has been magnificent until now. David had to add 0.6 mm to M1 Zglobal. Temp1=5.93 Temp2=3.14. Could be that the mirrors are cold from last night. 01:12 GUIDE preset gs=1 PA=INDEF=30 - OK x=0 y=562 01:14 GUIDE preset gs=1 PA=60 x=-24.9 y=569.2 - OK pcsmx flip is OKInitial Active Optics Comparison
01:17 ACTIVE preset gs=0 on-axis - converges quickly to 0.5 arcsec (5 iterations)! But image is slightly triangular (seeing is better than 0.5 arcsec and Z9 - Z10 are crosstalking). Jochen starts eavesdropping WFS analysis in IDL using gcs_wfsc_display. This allows us to compare GCS and IDL results. 01:30 +200 Z9
/Repository/20111103/GCS/left_wfscimage000020.fits
Measured Rotated Field Scaled to
Zern # (Center-of-Weight) to Primary Correction Total Send to PSF
IDL GCS IDL GCS IDL GCS IDL GCS IDL GCS
-----------------------------------------------------------------------------------------------
Z[ 2] = 46 -567 45 -32768 0 0 45 -32768 0 0
Z[ 3] = 23 -841 25 -32768 0 0 25 -32768 0 0
Z[ 4] = -67 -55 -67 -55 0 0 -67 -55 81 66
Z[ 5] = -37 7 -30 10 0 0 -30 10 -41 14
Z[ 6] = 81 38 84 37 0 0 84 37 -108 -48
Z[ 7] = -4 3 -1 5 0 0 -1 5 2 -6
Z[ 8] = 57 68 57 68 0 0 57 68 64 76
Z[ 9] = 5 -53 14 -53 0 0 14 -53 19 -72
Z[10] = 67 1 66 8 0 0 66 8 -90 -11
Z[11] = -11 -20 -11 -20 0 0 -11 -20 11 21
01:36 -200 Z10
/Repository/20111103/GCS/left_wfscimage000030.fits
Measured Rotated Field Scaled to
Zern # (Center-of-Weight) to Primary Correction Total Send to PSF
IDL GCS IDL GCS IDL GCS IDL GCS IDL GCS
-----------------------------------------------------------------------------------------------
Z[ 2] = 36 -345 36 -32768 0 0 36 -32768 0 0
Z[ 3] = 30 -894 30 -32768 0 0 30 -32768 0 0
Z[ 4] = -66 -68 -66 -68 0 0 -66 -68 79 81
Z[ 5] = -44 39 -45 40 0 0 -45 40 -61 55
Z[ 6] = 11 -55 10 -54 0 0 10 -54 -13 69
Z[ 7] = -6 -30 -7 -30 0 0 -7 -30 8 34
Z[ 8] = 18 19 17 19 0 0 17 19 20 21
Z[ 9] = 20 -19 19 -16 0 0 19 -16 27 -23
Z[10] = 21 -86 22 -87 0 0 22 -87 -30 118
Z[11] = -7 4 -7 4 0 0 -7 4 8 -4
01:48 +1500 Z5
/Repository/20111103/GCS/left_wfscimage000050.fits
Measured Rotated Field Scaled to
Zern # (Center-of-Weight) to Primary Correction Total Send to PSF
IDL GCS IDL GCS IDL GCS IDL GCS IDL GCS
-----------------------------------------------------------------------------------------------
Z[ 2] = 33 -562 34 -32768 0 0 34 -32768 0 0
Z[ 3] = 9 25 5 -32768 0 0 5 -32768 0 0
Z[ 4] = -141 -161 -141 -161 0 0 -141 -161 170 193
Z[ 5] = -674 -820 -719 -865 0 0 -719 -865 -977 -1176
Z[ 6] = 277 293 123 107 0 0 123 107 -157 -137
Z[ 7] = -7 -9 -13 -17 0 0 -13 -17 14 19
Z[ 8] = 47 68 46 67 0 0 46 67 51 75
Z[ 9] = 2 -51 -4 -31 0 0 -4 -31 -5 -42
Z[10] = 20 -53 20 -66 0 0 20 -66 -27 91
Z[11] = 27 53 27 53 0 0 27 53 -28 -55
01:54 -1500 Z6
/Repository/20111103/GCS/left_wfscimage000061.fits
Measured Rotated Field Scaled to
Zern # (Center-of-Weight) to Primary Correction Total Send to PSF
IDL GCS IDL GCS IDL GCS IDL GCS IDL GCS
-----------------------------------------------------------------------------------------------
Z[ 2] = 34 122 34 -32768 0 0 34 -32768 0 0
Z[ 3] = 0 -810 -5 -32768 0 0 -5 -32768 0 0
Z[ 4] = -91 -40 -91 -40 0 0 -91 -40 110 48
Z[ 5] = -286 -280 -97 -3 0 0 -97 -3 -133 -5
Z[ 6] = -549 -830 -612 -876 0 0 -612 -876 783 1122
Z[ 7] = -3 -30 -3 -32 0 0 -3 -32 4 36
Z[ 8] = 0 14 0 9 0 0 0 9 0 11
Z[ 9] = 101 74 84 84 0 0 84 84 115 114
Z[10] = 10 -39 56 0 0 0 56 0 -76 0
Z[11] = -16 -36 -16 -36 0 0 -16 -36 17 37
After talking to Doug, I'll bet we have the wrong reconstructor in IDL. (sextractor test version)
NOTE: The correct reconstructor is being used. I did switch off subtraction of reference centroids and it improved things a bit. I turned on subtraction of the background and the results got worse. I thought Torsten had background subtraction on in GCS so I don't understand why the IDL results go worse. DLM 20111104
Z4,Z5,Z6 have effective gains about x2 lower than GCS.
Z9,Z10 are down by x3-x4.
(we didn't test Z7, Z8,Z11)
I don't see any evidence of crosstalk between the mode pairs.
Focus of IRTC
Unrestrict DD variables for LBTtools.IRTC.takepic In the DD variable list called by takepic, there is an obsolete entry.Thu Nov 3 02:09:33.448 2011 GetMultiDDEntry alert for left IRTC: Offset not found: ecs.weatherStation.smt.ambientTemperatureThe actual variable is env.weather.smt.....etc.
Dave fixed this, but reminds us that the IRTC subpackage in LBTtools is obsolete. Can't see BS9183 star on IRTC. It looks like the IRTC cooler isn't working. Rebooted IRTC Windows PC. That fixed the problem, but the problem wasn't necessarily the cooler. 02:26 ACQUIRE preset to Stone_O ACTIVE preset to Stone_O - seeing is 0.45 arcsec on guider. We continue to lose ~30% of WFS images. TRACK preset to Stone_O 02:48 Start of data from focus_seq.cl (headers on the single images only) Raw images in /newdata/
-rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:47 irtc.20111103.024732.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:48 irtc_20111103.20111103.00001_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:48 irtc.20111103.024843.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:49 irtc_20111103.20111103.00002_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:49 irtc.20111103.024956.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:50 irtc_20111103.20111103.00003_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:51 irtc.20111103.025108.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:52 irtc_20111103.20111103.00004_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:52 irtc.20111103.025221.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:53 irtc_20111103.20111103.00005_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:53 irtc.20111103.025334.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:54 irtc_20111103.20111103.00006_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:54 irtc.20111103.025446.fits -rw-r--r-T 1 irtc 1142 4919040 Nov 3 02:55 irtc_20111103.20111103.00007_cube.fits -rw-r--r-T 1 nfsnobody nfsnobody 178560 Nov 3 02:56 irtc.20111103.025559.fits -rw-r--r-T 1 irtc 1142 1641600 Nov 3 02:56 irtc_20111103.20111103.00008_cube.fits
#
# IRTC Focus Cube Reduction - Gaussian Fit to irtc_focplate.fits
# Source images irtc_20111103.*.000Img_cube.fits
# 2011 Nov 3 UTC [rwp/osu]
#
#Img m2foc x y Peak fwhm sky maj min phi
001 0.045 314.4 155.2 2700 8.08 431.4 8.08 8.08 0
002 0.030 265.4 149.9 4871 5.92 427.6 5.92 5.92 0
003 0.015 216.5 142.9 7239 4.39 421.3 4.39 4.39 0
004 0.000 169.7 135.1 5905 4.58 422.1 4.70 4.45 55
005 -0.015 121.0 126.0 6944 4.68 424.4 5.25 4.17 108
006 -0.030 129.5 79.5 3854 6.18 427.2 6.38 5.99 123
007 -0.045 141.2 34.1 2344 8.61 402.8 8.61 8.61 0
The focus curve is basically symmetric, bottoming out on the middle 3. Best focus consistent with the 0.00 offset. Present AGW focus setting is 31.6 in AGW1_IRTC.cfg.
Data are in /OldRepository/IRTC_Data/20111103_IRTC/
Removing the M3 selector slowness from collimation updates.
oss.side[0].terc.focal_stations.bentGregorianBack string "-915.0 880.0 0.0 -25.789" 02:59 ACQUIRE Remove global offsets from M3. Stop and restart OSS. Tell OSS to move to focal station. Collimate M3. Disable RZ collimation.Transform Data on Stone_O (test)
Jochen created .list file for Stone_O for LBBG at PA=180 as the other list was for star appropriate for MODS at PA=0. The first off-axis active preset converged OK with GCS. 03:30 transform_collect, /GCS had a problem with the IRTC argument to instrument_........ Called Doug for a patch. Doug fixed that in 10 minutes. Then transform_collect choked when fits_gcs_to_struct failed to find a .info file for a .fits image which was bogus.Field Aberration Data (test)
Also choked when fits_gcs_to_struct failed to find a .info file for a .fits image which was bogus. 04:00 a new airmass arrives with higher dewpoint and worse seeing, 1.2 arcsecM3 fine alignment (or not)
04:27 ACQUIRE preset to pointing star, and offset the star out of the field wfsc 004 (sky, before we moved) Apply to SX M3 Global RZ to -0.4 (absolute= -26.189) IE=-172 CA=-37 wfsc 005 (sky, much better centered on the lenslet array) 04:39 GUIDE preset on-axis to Persson star BS9107 PA=0 wfsc 006 (star) 04:43 offset 0 0 ROT=90 wfsc 007 (star) 04:45 offset 0 0 ROT=90 wfsc 009 (star) 04:47 offset 0 0 ROT=90 wfsc 011 (star) This has a wobble of about 3 lenslets - not an improvement. Thus we return to our selector position adopted last night of -25.789. 04:54 on-axis ACTIVE preset failed 04:55 repeating same preset succeeded with star in different place in acq image. Looks like rotator is reporting ready while still moving. Issue 3774.Transformation Data on Stone_O (take 2)
LEFTZEROPOINT is 114.8 05:00 back to Stone_O for transformation data, but still some IDL bugs 06:14 another try at transform_collect, /GCS still on Stone_O at EL=25 degrees. The bugs are getting more subtle, as it crashed only when there were three bad WFS images in a row. Images are 0.75 arcsec at EL=23.3 degrees. 06:28 transform_collect, /GCSTransformation Data on Stone_A2
06:40 Coma diverged off the Y-axis when we came back from EL=23 to EL=53. Cleared corrections and try again. 06:46 Clear Active Optics on both mirrors. 06:47 ACTIVE preset on-axis to recollimate - guider seeing is 0.55 arcsec. 06:51 transform_collect, /GCS Even from a good starting point, GCS active optics diverges badly at x=68 y=542 06:57 ACTIVE preset on-axis to recollimate, Clear Active Optics on M2 and M1 07:02 transform_collect, /GCS but now David will block sending of zernikes to PSF. Guider seeing is 0.4 arcsec at EL=50 deg. 07:20 transform_collect stopped at star 5, PA=180, not clear why, suspect is rotator not yet ready 07:22 Redo: transform_collect, /GCS, limit=4000, STAR=3, failed again, star seems not to exist, restart with STAR=4, failed also, preset on-axis, redo, OK, star is there 07:35 transform_collect Stone_A2_LBBG, /GCS, LIMIT=4000 Seeing is excellent, we'll try to collect quite a few transformation data 07:46 recollimate, on-axis, continue with Stone_A2_LBBG, PA=90 07:57 star 13 was out of reach at PA=90. continuing, stopped after 17th star at PA=180 Data:| GStar | wfsc # | Single Image | Cube Image |
| 0 | 0 | irtc.20111103.073746.fits | irtc_20111103.20111103.00033_cube.fits |
| 7 | 397 | irtc.20111103.073909.fits | irtc_20111103.20111103.00034_cube.fits |
| 21 | 400 | irtc.20111103.074037.fits | irtc_20111103.20111103.00035_cube.fits |
| 20 | 402 | irtc.20111103.074308.fits | irtc_20111103.20111103.00036_cube.fits |
| GStar | wfsc # | Single Image | Cube Image |
| 1 | 417 | irtc.20111103.075433.fits | irtc_20111103.20111103.00037_cube.fits |
| 9 | 418 | irtc.20111103.075604.fits | irtc_20111103.20111103.00038_cube.fits |
| GStar | wfsc # | Single Image | Cube Image |
| 2 | 420 | irtc.20111103.075952.fits | irtc_20111103.20111103.00040_cube.fits |
| 16 | 422 | irtc.20111103.080122.fits | irtc_20111103.20111103.00041_cube.fits |
| 18 | 423 | irtc.20111103.080319.fits | irtc_20111103.20111103.00042_cube.fits |
| 7 | 424 | irtc.20111103.080449.fits | irtc_20111103.20111103.00043_cube.fits |
| 17 | 426 | irtc.20111103.080617.fits | irtc_20111103.20111103.00044_cube.fits |
| GStar | wfsc # | Single Image | Cube Image |
| 4 | 431 | irtc.20111103.081136.fits | irtc_20111103.20111103.00046_cube.fits |
| 1 | 440 | irtc.20111103.081259.fits | irtc_20111103.20111103.00047_cube.fits |
| 9 | 441 | irtc.20111103.081638.fits | irtc_20111103.20111103.00048_cube.fits |
| 13 | 444 | irtc.20111103.081803.fits | irtc_20111103.20111103.00049_cube.fits |
| 2 | 445 | irtc.20111103.082034.fits | irtc_20111103.20111103.00050_cube.fits |
| 16 | 446 | irtc.20111103.082203.fits | irtc_20111103.20111103.00051_cube.fits |
| 18 | 448 | irtc.20111103.082327.fits | irtc_20111103.20111103.00052_cube.fits |
Field Aberration Data on BS9107
08:26 Preset to BS9107, on-axis, collimate (Guider reports 0.3") 08:36 field_collect BS9107_fieldnew failed (see ISSUE 3774) 08:40 redo field_collect BS9107_fieldnew, when going to star 2, failed again, seems that we have to do it one by one 08:49 redo field_collect BS9107_fieldnew, STAR=2, didn't collimate within 3 cycles (bad WFSC-images), redo, 09:32 redo, now john_collect BS9107_fieldnew, STAR=7, (modified field_collect does a preset=track before) 09:53 Star 7 won't work for whatever reason, skip that and continue with Star 8 09:59 john_collect BS9107_fieldnew, STAR=8 10:10 john_collect BS9107_fieldnew, STAR=9 10:33 john_collect BS9107_fieldnew, STAR=10 11:01 john_collect BS9107_fieldnew, STAR=12 11:13 john_collect BS9107_fieldnew, STAR=13 11:45 john_collect BS9107_fieldnew, STAR=15 INSERT LOGFILE HERE BS9107_fieldnew_field.log 13:00 Despite 1h of attempts it was not possible to catch aberration data with GS 15! The WFS got crappy on a regular basis, the error message was always the same:255 nm rms error in image left_wfscimage000648.fits (rms error varied) => Running collimate_process: /Repository/GCSfiles/dailyimages//left_wfscimage000648.fits => Collimated in 2 iterations (sometimes collimated in 1 iteration) % Program caused arithmetic error: Floating illegal operandJMH (20111123): Andrew's verbal report on this field data was that there was a slight focal plane tilt, but no serious problems.
Evaluating the new transform
11:50 Installed Jesper's new transform as oacontrol.conf. Jesper wrote:I have computed a new transform assuming the hotspot on the IRTC to be at (x,y)=(156,137.5). I had to remove three bad stars but then the fit was below 50microns RMS. If I use only the data with PA=180 the RMS gets below 30microns. The revised config file is in the home directory of the agwuser account with the name: /home/agwuser/oacontrol.conf.20111103a and you can install it at your convenience.
to AGW1_IRTC.cfg 13:05 Some nice "fish egg" images on the WFS for checking lenslet alignment.
Close
13:10 Closing dome for impending dawn T=3.5 degC, D=-10.8 degC, Wind 10 m/sec steady from SW. -- JohnHill - 03 Nov 2011
| I | Attachment | Action | Size | Date | Who | Comment |
|---|---|---|---|---|---|---|
 dat |
transform.dat | manage | 3 K | 03 Nov 2011 - 10:23 | RichardPogge | AGW transformation data from transform_process_set |
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