Oct 22 UT 2008

Collimation

015740 -1294 191 512 -32 -294 -678 0.92 sent 015950 -5258 0 0 0 0 0 0.74 sent 020656 5319 0 0 0 0 0 2.46 not sent

I updated the collimation table based on the data taken at the end of the night last night. Copied the table we were using last night to SXPMLBCCollimation.20081021.dat and then copied /home/lbcobs/Collimation/new/Collimation_lbc_081021b.dat SXPMLBCCollimation.dat

021813 did not converge - lots of coma apparent

cleared active optics

022304 not converging

I think that the previous table was done with X global offset =0 and it was later increased to 1.463 to remove coma. So I think we need to add again this X global offset. Going to add again all non-zero global offsets (excluding Y, RX).

023022 - worse - lbcfpia does not converge and worse coma

zero all global offsets

023652 -2922 229 595 155 506 -23 1.28 023911 forgot to add back +1000 spherical after clearing active optics so Wayne is doing that now 024257 3504 -542 -1022 564 -158 0 1.91 024525 -256 -467 -345 -16 6 -198 1.49 024809 -208 128 192 70 -50 7 1.50

slew to 88deg elevation but we are in the +Y limit: 3.692-1.016+0.661 = 3.337 needed a +Z7 correction, but this increases Y AO value and made it further into the limit gave Y=-4, RX=-82.4 global offsets and try again...looks better

030214 194 -438 -214 -1643 626 -261 1.52 030507 -1242 -84 -375 -421 -103 0 1.97 030753 1059 -139 580 62 -186 0 1.70 030951 -172 451 -211 193 -291 191 1.57

changed global offsets to Y=-1 and RX=-20.6 changed again to Y=-0.7 RX=-14.42 031412 now pretty far from limit: 3.449 -1.003 +0.5 = 2.246 031757 -265 -159 -66 5 17 0 1.82 031951 -415 31 192 49 79 0 2.44 not sent

slew to 46 deg and see how it does with Y limit: 032650 -1971 55 -352 -800 176 0 2.56 032913 -234 273 -166 -1315 442 0 2.82 not sent very close to Y limit Y=-2.598 = -0.723 -0.995 -0.180

note +z7 increases Y (A0) and -z7 dec Y(A0)

elev 88deg: 034355 306 230 757 666 -123 0 1.90 034748 -720 -123 -210 175 11 -76 1.58 limit is hit now...

thinking about collim table...

taking some Standards in the meantime. There are some Fall standards in /home/lbcobs/StandardsFallSDT/ (but ... must change OBSERVER to Calibration!!!)

050557 0 -22 -234 29 -62 51 1.13

SA92 UsUBVgr 051102- imexam 051305 Uspec - 5.8-6.2 near center - becomes non-round away from center and largest fwhm~8 at top, smallest 5.2 at bottom... so there is tilt??? we did not see this from the superfoc last night.

B-Bessel = 5.8pix at top and 4.7 at bottom

modified lookup table data (and made new lookup table to fold in elevation dep tilt and get more range) cleared active optics & initialized 061513 -4834 0 0 0 0 0 1.17 061749 311 -19 -259 525 62 195 1.18 061953 -215 -477 -159 57 -134 -4 1.11 062145 -292 118 -291 183 88 27 1.10 good, elev=57.6

062936 --- lots of coma --- I had added the delta RX to RY...

go back and fix up the edited collim table: sxcoll081021bmod.dat re-run mkcoll_lbc and then copy the new table to mountain.

initialize/clear active optics

064641 -5110 0 0 0 0 0 0.97 064924 -458 -225 -443 265 288 -391 1.11 add z11=+1000nm -- we forgot after clearing active optics 065224 509 -267 493 737 26 -233 1.35 065447 -188 252 -564 22 -113 67 1.17 065655 445 -229 -76 44 -33 -19 1.22 sent - elev=85.4 Y=2.087

070232 - streaked - elev=88.6 deg and we had just transited 070429 569 165 244 -202 84 -45 1.45 070811 368 -111 -223 97 104 0 1.60 seeing not so good now - but at least we know that Y=2.229 and not too close to limit here at elev = 87.7

slew to intermediate elevation 071425 -1728 -123 -514 -199 21 232 1.54 071656 120 290 -151 38 -116 -32 1.57 ok, elev=57.3deg, Y=0.038

slew to low elevation, 37.3deg

072331 695 -122 -289 -239 -88 0 1.93 072537 130 451 330 292 45 0 2.22 ok, elev=37deg, X=2.207, Y=-0.313

went to elev=31deg but hit positive x limit.

hselect lbcb.*2.07*.fits[1] $I,mirrorx,mirrory,mirrorz,mirrorrx,mirrory,telalt lbcb.20081022.070232.fits[1] -1.951 2.406 -1.802 34.039 2.406 +88:48:39.13 lbcb.20081022.070429.fits[1] -1.941 2.393 -1.795 33.918 2.393 +88:39:30.23 lbcb.20081022.070811.fits[1] -1.835 2.172 -1.752 31.649 2.172 +88:08:00.91 lbcb.20081022.071425.fits[1] 0.490 0.172 -0.251 11.244 0.172 +57:21:56.72 lbcb.20081022.071656.fits[1] 0.509 0.003 -0.297 9.417 0.003 +57:22:04.63 lbcb.20081022.072054.fits[1] 2.601 -0.284 0.941 -0.392 -0.284 +37:22:05.72 lbcb.20081022.072331.fits[1] 2.237 -0.361 0.550 1.833 -0.361 +37:20:59.88 lbcb.20081022.072537.fits[1] 2.164 -0.565 0.577 -0.319 -0.565 +37:19:56.07

Pointing tests

SA95_UsUBV done --- 100028... (note that this particular OB says object=SA98 incorrectly) seeing about 1"

slew to SA98 and observe it at UsBV then at Vgr

collimate do SA95 at Vgr rotator failure at 04:08 MST 11:08 U 2008/10/22 11:07:52.699167 ROTATOR failure [src/rotator/rotator.c:1125] 2008/10/22 11:07:52.69914 ROTATOR GOYA programming error [src/rotator/rotator.c:1850] 2008/10/22 11:07:52.699095 ROTATOR GOYA no echo return [src/rotator/rotator.c:2010]

replayed OB and this seems to fix the problem...

(copied StandardsFallOBs to /home/LBTO/Calib_OBs --- I edited some OBSERVER values, but I need to do this for all and incorporate these to the Calib_OBs/STANDARDS directory)

slew to test guiding...

113545 75 -194 -77 -73 36 40 1.21

3 dithers of 300s each at V for guiding test. At RA,DEC=06:15, 29 (object incorr labelled WT10_246 - but it is a random field).

used fast ob, but it is taking ages to start the observation and the PA does not equal zero as I specified - instead PA=1.17. We will stop and load a regular OB.

worked ok - 115213 is the result pa=0. Images are round and from 5.8-6.2 pix fwhm where there is a gradient from best fwhm at bottom to worst at top, like we noted earlier.

taking another image at pa=180. 120938 is the result

seeing ~1.8" evening seeing ~1" midnight seeing ~1.3" morning

no time lost to tel or instrument

-- OlgaKuhn - 23 Oct 2008
Topic revision: r1 - 23 Oct 2008, OlgaKuhn
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