APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Thursday December 2, 2004 (MJD 53342) ---=== OBSERVING TEAM ===--- Swing Dan Long Night Steph Snedden Jurek Krzesinski ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- We did not finished any plate tonight, but got some useful signal on one of them. Problems (see the log): ----------------------- - One rotator abort (no obvious reason). - sp2 got out of spec right after Dan collimated it, then it went back to spec on it's own while we were observing. - bright Moon + clouds. ---=== OBSERVING LOG ===--- Afternoon check went normally with a couple of hiccups. ID5-1 failed due to bad directory during test bias. Tape replaced and single drive recovery successfully finished. It took two tries of grabInstruments to connect to the spectrographs. Focus was checked on the spectrographs. It asked for a moderate positive move, but since the pixel shift was less than .3 and the spectrographs were focused near the end of last night in conditions similar to those expected tonight, I elected not to make the change. SP1 Coll_motor_A -97 Coll_motor_B -2114 Coll_motor_C -3496 SP2 Coll_motor_A 4334 Coll_motor_B -14089 Coll_motor_C -7864 Night: ------ 00:31Z We went to the filed in twilight, cart 8 plt 2058. Stars on slew. 01:35Z We've got a rotator abort in the middle of the second exposure. Exposure was paused and we were trying to clear rotator, but as soon as we tried to move the rotator, it aborted. No slips in rotator. We tried to move it from MCP and it did, we tried then again with tcc and it did. Hmmm - no clue what has happened. However at the time we noticed the rotator abort, we also noticed watcher axis error: rotator (addoffset: Max accl. for rotator exceeded: 305/1000 (2004-12-03 01:33:07Z sdssmcp): 2004-12-03 01:33:14Z ) Well, we were observing at hight altitude, but nothing serious (~77 deg). All together ~20 minutes of observing time was lost due to the problem and we had to abort the exposure. Then we noticed that sos reported XSIGMA WSIGMA in red on sp2. And that was our first plate right after Dan checked the focus and spectrograph collimation! Since we noticed that on the first exposure on that plate sos reported: sdR-b2-00029658.fit: WARNING: Large flexure flat<->science (Post-calibs recommended!) sdR-r2-00029658.fit: WARNING: Large flexure flat<->science (Post-calibs recommended!) We concluded that something must have shifted in sp2 after first calibration. So another set of calibs was taken and XSIGMA and WSIGMA were yellow now. First set of exposures with red values were declared bad and we re-reduced the first exposure with the new calibrations. Unfortunately sos was still complaining about large flexure for that exposure (29658), we did not declare it exposure "bad", but also did not took it into account for s/n measure, maybe for Brian the exposure will be useful? Midcalibs were fine and all other exposures after bad XSIGMA. 04:40Z Thick clouds arrived. Postaclib taken and all XSIGMAs were black as if something gradualy returned into place. Plate nod done. 05:45Z Te telescope was moved to stow position. 08:43Z Cart 6 plt 1929 mounted. Stars on slew. After 3 different integration time exposures we couldn't get any useful one (the Moon is too bright). After the Moon went down in the sky we tried to get a few more exposures but still the sky in one filter was showed in red. All exposure were declared bad. endnight run ok. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 5024 22:40Z 22:55Z 100 O 121.45 125.20 38 ignore 5025 23:10Z 23:17Z 100 O 128.91 130.73 25 ignore ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ ---=== SPECTROSCOPY DATA SUMMARY ===--- Summary Checked (y/n): y QA Procedures Done (y/n): y UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 29650, plate -9999 ------- 22:31 29650 0.0 bias ----- sequence 29651, plate 1954 ------- 23:12 29651 10.0 flat 23:14 29652 2.0 arc 23:26 29653 2.1 arc 23:29 29654 2.1 arc ----- sequence 29655, plate -9999 ------- 00:15 29655 0.0 bias ----- sequence 29656, plate 2058 ------- 00:57 29656 10.0 flat bad 00:59 29657 2.0 arc bad 01:28 29658 1200.1 target might be bad 02:02 29659 10.0 flat 02:05 29660 2.0 arc 02:35 29661 1200.1 target 03:00 29662 1200.1 target 03:22 29663 1200.1 target 03:25 29664 10.0 flat 03:28 29665 2.0 arc 03:53 29666 1200.1 target 04:21 29667 1500.1 target 04:48 29668 1500.1 target 05:31 29669 10.0 flat 05:33 29670 2.0 arc ----- sequence 29671, plate 1929 ------- 08:47 29671 10.0 flat 08:49 29672 2.0 arc 09:09 29673 900.1 target bad sky 09:22 29674 600.1 target bad sky 09:46 29675 1200.1 target bad sky 11:45 29676 10.0 flat 11:48 29677 2.0 arc 12:07 29678 900.1 target bad sky 12:25 29679 900.1 target bad sky 12:28 29680 10.0 flat 12:31 29681 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 01:10Z 8 2058 78.18 0.0007 65.51 0.0038 245.06 0.0056 1.000300 08:55Z 6 1929 74.86 0.0017 63.41 0.0036 241.53 0.0003 1.000210 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL8123 Stays: JL8124 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 01:10Z 8 2058 1.00030 -2961 -1112 200 78 65.5 0.1 14 221 gdr 1.3 08:55Z 6 1929 1.00021 -2073 -522 50 75 63.4 0.6 11 274 gdr 1.3 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:32Z 35 0 6 203 (SSW) 171 - Mostly Clear 23:04Z 34 5 7 205 (SSW) 218 - Mostly Clear 23:36Z 31 5 7 190 (S) 168 - Mostly Clear 00:08Z 30 5 7 179 (S) 185 - Mostly Clear 00:36Z 32 -3 10 183 (S) 138 - 01:08Z 32 -4 11 190 (S) 132 - 01:41Z 32 -7 12 212 (SSW) 132 - 02:13Z 32 -6 11 226 (SW) 107 - 02:44Z 31 -3 13 214 (SW) 113 - 03:15Z 33 -8 7 242 (WSW) 118 - 03:45Z 32 -5 9 199 (SSW) 133 - 04:17Z 33 -10 13 222 (SW) 108 - 04:48Z 34 -11 9 250 (WSW) 94 - 05:19Z 34 5 12 217 (SW) 112 - 05:50Z 33 -7 11 239 (WSW) 120 - 06:21Z 32 -7 7 223 (SW) 189 - 06:54Z 35 -9 11 231 (SW) 107 - 07:27Z 32 -9 6 225 (SW) 162 - 07:57Z 31 -3 8 236 (SW) 186 - 08:30Z 32 -10 9 256 (WSW) 121 - 09:02Z 33 -11 11 259 (W) 158 - 09:35Z 32 -10 8 266 (W) 178 - 10:07Z 32 0 10 266 (W) 254 - 10:39Z 31 1 10 271 (W) 270 - 11:11Z 31 0 13 286 (WNW) 248 - 11:44Z 32 0 7 315 (NW) 200 - 12:16Z 31 0 12 298 (WNW) 225 - 12:47Z 31 -1 14 307 (NW) 200 - ---=== TELESCOPE STATUS ===--- 00:00Z telescope opened, fans on, spectro dewars refilled. ---=== SOFTWARE USED ===--- IOP/SOP: v3_143_0 Watcher: v2_30_0 MCP: v5_26_0 TPM: tpm_v2_46_0 AstroDa: v14_47 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v1_96 SoS: v4_10_7 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.5610 0.5600 Axial B 0.5730 0.5720 Axial C 0.9350 0.9330 Trans D -8.2030 -8.1960 Lateral E 10.0584 10.0457 Lateral F 11.6205 11.6205 GALILS Commanded: 4300. -1900. 2850. -13300. -7600. -7650. Actual: 4299. -1917. 2868. -13303. -7614. -7660. SETMIR VALUES PriDesOrient: 0.00 4.57 1.18 64.25 -249.76 PriOrient: 0.00 4.56 0.88 65.00 -249.58 SECONDARY: ---------- Focus: 0.00 Air Temp.: 0.9 Alt.: 30.277388 MIGS TONIGHT NOMINAL Axial A 1.5740 1.5690 Axial B 1.0590 1.0530 Axial C 1.1640 1.1620 Trans D -0.2040 -0.1950 GALILS Commanded: 1619145. 1604858. 1528437. -13800. -9950. Actual: 1619188. 1604973. 1528571. -13820. -9964. SETMIR VALUES SecDesOrient: 1257.00 27.97 -10.00 -90.00 257.89 SecOrient: 1256.92 27.98 -10.03 -89.96 257.49 ---=== PROBLEMS IN DETAIL ===---