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You are here: Foswiki>Commissioning Web>Com20130912 (25 Jul 2014, DouglasFisher)Edit Attach
UT 20130912 Technical Observing
Observer: DThompson, JHill, DMiller (Tucson)Telescope Operator: Sallanson (LBTO)
Software Support: DCox (Tucson)
AO Support: DMiller (Tucson)
Telescope Support: KNewton (LBTO)
Instrument Support: JPower (LBTO)
Summary
Dave T did the first half with LBCs. Data collection for checkout was completed, but there were significant problems with rotator trajectories and RPC errors. Tests were made using LBC internal rotator trajectories. John H and Doug M did the second half with AGW2. The DX M2 shell has some wrinkles that are visible on the wfs, but imaging performance is identical in 0.5 arcsec seeing. Having proper air pressure to AGW2 fixed our elongated pupil wobble issue, although we still have gotten DX M3 aligned as well as SX M3. We tried to collect field aberration data during the last hour, but conditions (both seeing and clouds) were deteriorating. Seeing was excellent (0.5 - 0.8 arcsec) for most of the night, although we were interrupted by patches of cloud. It appears that we need one more night (or better 2 half nights) to finish the AGW2 alignment.Details
LBCs
Delay in opening because of cloud(s) OneBias_Bino looks OK, some pickup noise on blueOpen
02:15 Opening 02:30 ACT0302 to do initial rangebal and dofpia lbcrangebal B=23159 R=23147CE -37.608 1.731 -35.876 CA -109.506 7.128 -102.378 On LBC-Blue/LBC-Red the star is 15.0/4.1 arcsec away from the rotator center.Based on these, the following mount and optics offsets were calculated to co-point while optimizing the range available to M1: MOUNT: delta_IE = 1.73 arcsec, delta_CA = 7.13 arcsec M1 SX: dX = 0.35 mm, dY = 0.07 mm, dRX = 1.44 arcsec, dRY = -7.56 arcsec M1 DX: dX = -0.31 mm, dY = 0.11 mm, dRX = 2.36 arcsec, dRY = 6.68 arcsecdofpia, /x2, /first
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Computed Aberrations (nm) | (arcsec) | channel
Defoc AstX AstY ComaX ComaY Sph | Est. Est. |
(Z4) (Z5) (Z6) (Z7) (Z8) (Z11) (Z22)| seeing WIQ |
--------------------------------------------------------------------------
-149 38 -98 -1119 -261 38 0 0.91 0.53 red
6755 0 0 0 0 0 0 2.01 2.66 blue
731 207 -180 581 34 -235 -36 0.92 0.43 red
-87 -288 -249 -159 -181 0 0 1.71 0.18 blue
-262 -64 185 -143 -274 6 33 0.82 0.20 red
1746 22 129 -526 17 -602 -100 1.52 0.83 blue
657 -161 139 561 710 -230 -29 0.82 0.51 red
-555 72 -342 303 -19 -96 7 1.59 0.29 blue
-1171 102 200 -608 -962 120 9 0.71 0.70 red
-784 -260 -231 -307 -41 0 0 1.92 0.36 blue
407 -82 -128 -539 154 -61 0 0.76 0.31 red
1307 140 137 119 206 -278 -34 1.54 0.56 blue
56 293 -400 100 324 -126 -17 0.84 0.24 red
642 42 -108 372 31 -241 -12 1.61 0.35 blue
-345 65 117 -77 -619 -40 -10 0.61 0.32 red
-612 18 162 -138 -89 -49 24 1.60 0.27 blue
36 -111 -16 115 659 -72 -33 0.64 0.32 red
131 -108 -17 -123 131 13 1 1.55 0.13 blue
-145 155 -70 -25 144 -28 -29 0.63 0.13 red
242 104 31 -172 -19 -90 8 1.55 0.16 blue
Both converged!
ACT0302 in focus...R 25517 B 25530
seeing <1"!
NGC6779 DOFPIA, /X2
320 -137 116 830 -417 -59 -4 0.51 0.45 red 597 -113 -82 529 11 35 5 0.92 0.35 blue 141 136 -89 -407 312 -41 15 0.73 0.26 red 124 16 87 -206 -23 -37 -4 1.32 0.14 blue 712 -13 220 -17 68 -207 -19 0.46 0.33 red 114 -148 -117 111 28 -21 -21 1.19 0.12 blue -1294 45 109 230 -207 212 -13 0.54 0.55 red -282 63 -129 -81 -24 128 18 1.53 0.17 blue 889 -161 184 -4 117 -118 17 0.51 0.38 red 371 125 48 -187 -85 11 22 1.34 0.19 blue 389 -113 127 -317 -2 -92 11 0.47 0.24 red 388 -164 -20 -23 2 -46 -27 1.28 0.18 blue 865 -13 -91 149 108 -185 -13 0.52 0.38 red -466 132 -73 -323 199 9 17 1.30 0.27 blue -562 25 -195 -73 300 3 13 0.64 0.28 red 201 -111 100 135 129 21 1 1.11 0.15 blueStopped with "S", red not converged but it looks good. NGC6779_offset_guide.ob
guiding working, rotator problem apparent.
Switch over to using LBC internal trajectories
03:40 updated redchannel.conf/bluechannel.conf on lbccontrol in /home/lbccontrol/conf:Channel.GetRotatorTrajectoryFromTelescope = FALSE #was TRUE
then lbckill/lbcstart
original versions saved in red/bluechannel.20130912.conf
JMH (the next day): These changes were in LBC software version lbc1.4, and have not yet been propagated to lbc1.5.
KS (later): The images noted in the InformationTechnology using the internal LBC rotator trajectories DID indeed use the internally generated trajectory. There are multiple messages in the log file that indicate this:
2013/09/12 03:45:48.183645 S R read ENABLE parameter Channel.GetRotatorTrajectoryFromTelescope< with value FALSE 2013/09/12 03:48:28.169358 W R TCS custom code for rotator trajectory [src/tcs/tcs.c:532]This was the configuration until the instrument was turned off at 06:34UT. LBC used its own calculation of trajectories based on TCS values for TargetDEC, TargetRA, LST. NGC6779.ob to redo DOFPIA, /X2
1551 -29 31 467 349 -90 -1 0.44 0.67 red -331 -33 -13 331 -61 -26 -7 0.42 0.22 red -319 22 30 29 -310 157 -5 0.39 0.23 red 530 68 -33 -403 395 -181 -18 0.36 0.36 red -134 -33 -10 36 70 -27 3 0.38 0.10 red 247 218 314 569 -330 168 -7 0.86 0.36 blue -231 8 208 37 42 22 5 0.86 0.14 blue -838 195 25 53 12 282 20 0.76 0.39 blue -319 -224 -113 93 123 169 0 0.93 0.21 blue 127 33 337 56 -60 -22 -3 1.01 0.14 blue both convergedNote to Michelle, these globular cluster fields are a bit dense, DOFPIA is having trouble fitting the sky. Move off another ~10 arcmin? 03:59 NGC6779_offset_guide.ob
lbcb.20130912.035927, lbcr.20130912.035923
blue guidestar on postage stamp on GUI is elongated, red looks OK
red looks good, ~0.7", blue is elongated 2:1
no apparent rotator problems
OB stopped after second exposures read out. 04:14 NGC6779.ob for DOFPIA
-662 30 40 281 -98 1 9 0.46 0.30 red 226 -23 -39 -104 125 -72 0 0.46 0.15 red -275 -125 -159 43 -293 -275 -16 0.86 0.26 blue 111 121 -50 22 6 -102 -11 0.75 0.12 blueFocal Plane Tilt
04:19 RB_rV_superfoc7 (PA=0)
- B=042004 R=041958
- 042054 042037
- 042143 042117
- 042232 042158
- 042321 042238
- 042410 042318
- 042500 042359
- B=042750 R=042745
- 042839 042825
- 042929 042905
- 043018 (no more reds)
- 043107
- 043155
- 043245
112 2013/09/12 04:30:39.081750 OB execution error: one or more systems failed [src/lbc/actions.c:1159] 111 2013/09/12 04:30:38.941805 >>> preset/expose/save interrupted at expose time RPC error, restart OB gave another RPC error. Turn off, turn on 93 2013/09/12 04:34:34.509004 camera system encountered a problem 6 [src/channel/channel.c:680] 92 2013/09/12 04:34:24.040401 CAMERA RPC Client/Host communication failed retval:3 [src/camera/camera.c:643] 91 2013/09/12 04:33:30.676917 OB execution error: one or more systems failed [src/lbc/actions.c:1159] 90 2013/09/12 04:33:30.546853 >>> preset/expose/save interrupted at preset time 89 2013/09/12 04:33:28.726773 camera system encountered a problem 6 [src/channel/channel.c:1104] 88 2013/09/12 04:33:28.726659 CAMERA RPC Client/Host communication failed retval:3 [src/camera/camera.c:1101]04:40 restarted RB_rV_superfoc7_pa180
- B= R=044037 (blue never started)
- abort and restart
- B=044320 R=044306
- 044410 044347
- 044500 044426
- 044549 044506
- 044638 044546
- 044727 044626
- 044819 044706
-794 -15 9 497 45 113 19 0.40 0.40 red -52 10 26 -138 82 1 1 0.44 0.11 red -599 158 54 19 18 -83 7 0.72 0.26 blue 146 -132 -72 57 25 -53 -1 0.83 0.12 blueRB_rV_superfoc7_pa180
- B=045526 R=045520
- 045616 045559
- 045705 045639
- 045754 045719
- 045843 045759
- 045933 045839
- 050022 045919
- B=050329 R=050322
- 050419 050402
- 050507 050442
- 050556 050522
- 050645 050602
- 050735 050641
- 050824 050721
186 46 30 -41 -107 -28 6 0.43 0.12 red
-145 -9 37 -183 109 15 9 0.46 0.14 red
130 53 51 278 -142 -49 1 0.42 0.17 red
345 -13 27 -333 58 -145 2 0.40 0.24 red
-371 105 19 9 50 -193 -12 0.80 0.21 blue
271 182 -93 12 -92 -103 -6 0.74 0.17 blue
-313 -132 -23 -93 0 -3 0 0.69 0.16 blue
-3 -118 72 -108 -7 -67 -4 0.69 0.11 blue
05:15 Filter Focus Offsets: g-SLOAN - RB_rV_superfoc7.ob B=51701 R=51655 @ start
- RB_ig_superfoc7.ob B=52335 R=52314
2013/09/12 05:25:24.451010 OB execution error: one or more systems failed [src/lbc/actions.c:1159] 2 2013/09/12 05:25:24.371026 >>> preset/expose/save interrupted at preset time 1 2013/09/12 05:25:24.370921 camera system encountered a problem 6 [src/channel/channel.c:1104] 0 2013/09/12 05:25:24.370801 CAMERA RPC Client/Host communication failed retval:3 [src/camera/camera.c:1101]telescope@lbccontrol appears not to have permission to kill/start LBC:
lbto@obs2:22 % ssh telescope@lbccontrol telescope@lbccontrol's password: [telescope@CMU telescope]$ cd /home/lbccontrol [telescope@CMU lbccontrol]$ ./lbckill.sh lbc(30339): Operation not permitted lbc(30344): Operation not permitted lbc: no process killed [telescope@CMU lbccontrol]$ exitDone as root which worked 05:30 DOFIPA, /X2 (EL=60)
-448 -10 17 484 -12 0 2 0.45 0.29 red
40 52 -9 -315 155 -84 -5 0.44 0.19 red
-509 -113 -93 201 -42 -97 1 0.79 0.25 blue
181 111 -24 -81 88 -5 -3 0.74 0.12 blue
05:36 Filter Focus Offsets: g-SLOAN (again) - RB_rV_superfoc7.ob
- RB_ig_superfoc7.ob
- RB_rV_superfoc7.ob red warning again
9 2013/09/12 05:51:29.808118 OB execution error: one or more systems failed [src/lbc/actions.c:1159] 8 2013/09/12 05:51:29.728077 >>> preset/expose/save interrupted at preset time 7 2013/09/12 05:51:29.727974 camera system encountered a problem 6 [src/channel/channel.c:1104] 6 2013/09/12 05:51:29.727866 CAMERA RPC Client/Host communication failed retval:3 [src/camera/camera.c:1101]blue completed so there is a full set of superfoc for the g filter. 11:02 WT10_306
DOFPIA, /X2
3209 -28 -108 -526 -402 -152 -6 0.62 1.31 red 237 -11 -73 290 -147 -156 -1 0.53 0.22 red -198 -32 -28 -5 -17 -80 18 0.54 0.12 red 121 22 -19 52 6 -88 11 0.57 0.11 red 2094 -268 -103 -389 -199 -95 10 0.89 0.86 blue 682 -176 30 -36 151 -218 -6 0.86 0.32 blue 379 -73 -48 152 124 -218 -7 0.81 0.24 blue 163 76 -63 -174 -101 -65 15 0.89 0.15 blueRun guide test again, 360x on WT10_306
Rotator problem persists! EL>85 06:25 Turning telescope over to Doug Miller for AGw#2 tests. Reconfiguring to FrontBent on both sides
IRTC@RFBG with AGW2
07:00 Preset fails when image doesn't arrive from AzCam. Restarting GCSR didn't help. Steve is rebooting various AzCam computers. When we were last here on the morning of 20130903 UT, the RFBG pupil wobble had converged to a line rather than a point. This has been fixed by putting the compressed air supply for AGW2 back to its nominal pressure. 07:15 Steve has cold booted the azcamserver (5.1) machine, but now it doesm't respond to ping. ?? 07:20 Call Taras. He says we should be using azcamserver (4.6). 07:26 ACQUIRE preset succeeds, but still no AzCam image. Call Taras again. We switched back to the "new box". 07:36 Authorize LUCI1 and IRTC 07:40 ACQUIRE preset with BC=0 -- succeeds with a movie. 07:45 ACTIVE preset to BS9101 BC=0 -- Acquisition image looks like the space shuttle. Seeing is 0.55 - 0.7 on the guider at EL=64. 07:55 async ACTIVE preset on left - some binocular tests while Doug is tuning his script 07:57 async ACQUIRE - Steve picks the correct focus direction. Needed 0.4 mm. 07:59 ACTIVE preset fails on left when acquisition picks the edge of the bottom black stripe (lower right corner). 08:06 Clouds 08:13 The good news about these clouds is that the guider is no longer grabbing the hot pixels when the star disappears. The GCS patch 2.12.6 is working correctly, but is numbered on the GUI as 2.12.5.Pupil wobble with AGw2 @ RFBG
/home/lbto/data/20130912/sh_pupil_wobble/set_? 08:20 Doug is collecting pupil wobble data on the right side. Tip=-200, Tilt=+250pupil_collect - set_1 08:35 The thicker clouds are gone, and seeing is bouncing around in the 0.4 to 0.6 arcsec range on the guiders. 08:47 Move DX M3 Global Offset Tip from -200 to 0 in steps of 50. Tilt remains at +250 08:50 Move DX M3 Global Offset Tilt from +250 to 0 in steps of 50. Tip remains at 0 08:57 Move DX M3 Global Offset Tilt from 0 to -250 in steps of 50. Tip remains at 0 These steps of 50/5 seem to give 1 arcsec jumps on SX. 09:01 Move DX M3 Global Offset Tilt from -250 to -500 in steps of 50. Tip remains at 0 09:07 Move DX M3 Global Offset Tip from 0 to +200 in steps of 50. Tilt remains at -500 09:10 pupil_collect - set_2 guide.telescope.tmp is colliding between sx and dx for two instances of LBTplot. 09:25:27 stop reporting centroids on GCSL 09:30:57 resume reporting centroids on GCSL 09:35 Move DX M3 Global Offset Tip from +200 to 0 in steps of 50. Tilt remains at -500 09:39 Move DX M3 Global Offset Tilt from -500 to -250 in steps of 50. Tip remains at 0 09:43 Move DX M3 Global Offset Tilt from -250 to -150 in steps of 50. Tip remains at 0 09:46 pupil_collect - set_3 10:12 Move DX M3 Global Offset Tilt from -150 to 0 in steps of 50. Tip remains at 0 10:xx pupil_collect - set_4 --> radius is about 4 pixels. 10:15 Seeing "explodes" from 0.5 to 1.2 arcsec as some more clouds arrive. --> radius is about 4 pixels. Why can't we make it smaller? Is something else out of alignment?
Field data for AGw2 at BS9107
/home/lbto/data/20130912/field_agw2/ 10:42 Authorize IRTC @ RFBG only 10:43 ACQUIRE preset to recover pointing since we moved M3 IE=-2 CA=-133 10:50 ACTIVE preset to BS9107 at EL=81 10:58 field_collect with BS9107_new_field.list But the on-axis pupils are not well centered. 11:10 Doug measured a new on-axis pupil center at 371.5, 253.8 ---> John applied this to WFSCam_hotspot_x in LUCI_IRTC_R.cfg (takes effect without restarting GCSR) 11:15 field_collect with BS9107_new_field.list - seeing on the guider is running 0.7 to 0.85 arcsec FWHM at EL=85. 11:27 Having trouble collimating below 250 nm on-axis. Seeing doesn't seem that bad, so I'm suspecting we got some stray Z9 while the pupil position was off. 11:30 clear active optics on DX M1 11:32 field_collect, start=2 with BS9107_new_field.list - seeing on the guider is running 0.7 to 0.85 arcsec FWHM at EL=85. starting with image 85 convergence is much better - don't use the data above.........| GStar | wfsc # |
| 0 | 85-86 |
| 28 | 87-89 |
| 0 | 90-91 |
| 36 | 92-94 |
| 0 | 95-97 |
| 33 | 98-100 |
| 0 | 104-103 |
| 18 | 106-108 |
| GStar | wfsc # |
| 0 | 109 |
| 19 | 110-112 |
| 0 | 116-118 |
| 24 | 119-121 |
| 0 | 122-124 |
| 42 | 129-131 |
| 0 | 132-134 |
| 20 | 135-137 |
| 0 | 138-140 |
| 50 | 141-143 |
Results from analysis of field data 20130912 DMiller
=> Field Data Results
Measured bi-nodal astigmatism
rfbg
From 45 Astigmatism Measurement
On-Sky Arcseconds
-------------------------------------------
Tip = 37.7", Delta IE = -37.7"
Tilt = 127.4", Delta CA = -127.4"
rfbg
From 0 Astigmatism Measurement
On-Sky Arcseconds
-------------------------------------------
Tip = 30.6", Delta IE = -30.6"
Tilt = 122.8", Delta CA = -122.8"
* 45-Astigmatism plane: 
- Focus plane:
Close
12:33 close for impending dawn -- DavidThompson - 12 Sep 2013
| I | Attachment | Action | Size | Date | Who | Comment |
|---|---|---|---|---|---|---|
 jpg |
45_astig.jpg | manage | 66 K | 13 Sep 2013 - 03:44 | DougMiller | 45-Astigmatism plane |
| jpg |
focus.jpg | manage | 69 K | 13 Sep 2013 - 03:45 | DougMiller | Focus plane |
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Topic revision: r9 - 25 Jul 2014, DouglasFisher
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