APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday January 31, 2003 (MJD 52671) ---=== OBSERVING TEAM ===--- Swing: Howard Brewington Night: Dan Long, Pete Newman ---=== OBSERVING PLAN ===--- Science. ---=== OBSERVING SUMMARY ===--- Imaging all night, although not all productively due to variable seeing. We decided that waiting through the bad seeing to take advantage of the periods of good and acceptable seeing with excellent photometric conditions and moonless sky was worth sacrificing a few spectrographic plates. Strips observed: 62S -151 <= lambda <= -141 (completes the Abell 426 program) 27N -62 <= lambda <= -15 (in two pieces) 30S +2 <= lambda <= +16 ---=== OBSERVING LOG ===--- Swing shift: During day shift, I checked the focus of the spectrographs; all four cameras were reported by IDL as out-of-focus. I did a sp1> ; mechPiston 1778 and a sp2> ; mechPiston 2512. Afterwards, all cameras were in focus except b1, so I adjusted b1 by the amount reccomended via IDL. After another set of Hartmann exposures, IDL reported b1 as in focus, but now b2 was out-of-focus, i.e., Mean offset = 0.17 pix. I ran out of time for a b2 adjustment. At the time of these focus procedures, m1 temp= about 8C and ambient= about 8C. Night shift: Photometric with light SW winds from before sunset, so we start with imaging. See imaging details section for notes. Watcher reported "ln2 empty (2003-02-01 01:55:31Z)" as a critical error but it did not recur. Are these related to having the imager on the telescope? About 03:25Z, we spot a strange "cloud" in the low-light camera looking at the telescope. See also the PT log for another strange event. Just before running endNight, Dan's X server died, killing his IOP processes _just_ before he launched endNight. When Pete tried to run endNight from his IOP session, it failed after asking its questions. See problem section #2. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 3640 21:00Z 21:15Z 100 O 155.03 158.80 39 ignore Doghouse bias 3641 00:40Z 00:59Z 100 O -149.80 -145.19 45 bias In enclosure 3642 01:29Z 02:29Z 62 S -163.65 -148.55 115 ignore Bad seeing 3643 02:31Z 03:45Z 62 S -157.11 -138.43 137 science Abell 426 3644 03:49Z 06:59Z 27 N -66.37 -18.58 332 science Usable -66 to -36.2 3645 07:02Z 07:16Z 16 N -67.33 -63.86 37 ignore Bad seeing 3646 07:22Z 08:01Z 27 N -46.68 -36.76 80 ignore Bad seeing 3647 08:10Z 10:09Z 27 N -39.28 -9.33 213 science Usable -38.3 to -15 3648 10:14Z 10:54Z 30 S -3.02 6.97 81 ignore Bad seeing 3649 10:58Z 11:24Z 30 S -3.10 3.47 58 ignore Bad seeing 3650 11:25Z 12:50Z 30 S -0.74 20.51 155 science Usable +2 to +16.5 ---=== IMAGING RUN DETAILS ===--- NB. Comments about seeing measures are based on seeingRun reports. Run 3641 - Bias on telescope, T-bars unlatched, in darkened enclosure. Run 3642 - 62 S. Ignore - measured seeing never good as the mirrors had not thermally equilibrated and the local winds were unstable shortly after sunset. However, we did get focussed and checked skippy was happy, so we backed up and started the strip again. Run 3643 - 62 S. Good data -155 <= lambda <= -141 Frame Lambda Notes ----- ------ ------------------------------------------------------ 10 -156.6 Start ramp up. In focus, skippy happy. 20 -155.0 Start of science. 54 -150.0 Seeing acceptable. Broad diagonal stripe across chip 15 (r, dewar 5). Plane? Diffraction from nearby star? This coincides with a sudden jump in the seeing. 89 -144.8 Seeing good. (No, Pete, not "seeing god".) 114 -141.0 End science. 129 -138.6 End drift. Run 3644 - 27 N. Good data for -62 <= lambda <= -36.2 Frame Lambda Notes ----- ------ ------------------------------------------------------ 10 -66.0 In focus, skippy happy. 23 -64.0 Start ramp up. 36 -62.0 Start science. 60/6 -58.3 Another streak across dewar 5 r (chip 15) 60 -58.5 Seeing acceptable. 99 -52.6 Seeing good. 189 -39.1 Seeing acceptable. 209 -36.2 Seeing bad. We continue scanning to monitor seeing before making a decision on what to do next. 324 -19 End drift. No good data since lambda -36.2 Run 3645 - 16 N. Ignore - tested seeing at different pointings, no good. Run 3646 - 27 N. Ignore. Back up on 27 N at higher altitude, with improving seeing, but the wrong azimuth wrap! During the slew to the start of the next run after unwrapping the azimuth axis, the alt and az axes aborted. See problem section #1 for murmur messages. Run 3647 - 27 N continued. Good data for -38.3 <= lambda <= -15 Frame Lambda Notes ----- ------ ------------------------------------------------------ 9 -39.1 Skippy happy. 14 -38.3 Seeing good. In focus. Start ramp. 28 -36.2 Start science, replacing the bad seeing from run 3644. 29 -36.1 Star of ~3rd magnitude in dewar 6. 59 -31.5 Seeing acceptable. 70 -30.0 Seeing good. 84/85 -27.6 Streak through r chips on dewars 5 (frame 84) and 6 (frame 85). 89 -27.0 Seeing acceptable. 109 -24.0 Seeing good. 169 -15 Seeing bad (was marked acceptable at first). End science. 205 -9.5 End drift - seeing still bad. Run 3648 - 30 S. Ignore - bad seeing. Run 3649 - 30 S. Ignore - bad seeing. Run 3650 - 30 S. Good data over +2.0 <= lambda <= +16.5 Frame Lambda Notes ----- ------ ------------------------------------------------------ 10 -0.4 Seeing good. In focus. Skippy happy. 12 0.0 Start ramp up. 25 +2.0 Start science. 79 +10.0 Seeing acceptable. 109 +14.5 Seeing good. 122 +16.5 End science. Start 18 deg twilight. Start ramp down. 147 +20.2 End drift Note that we have assumed that ramp down can take place into either bad seeing or past 18deg twilight. Ramp up was always in good or acceptable seeing. ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- 3642 16 4 133 -9.800 0.491 7.500 0.459 -0.00340 322 71 3642 18 4 134 -9.600 0.366 7.400 0.347 -0.00353 322 71 3643 11 4 183 -7.800 0.493 2.300 0.431 -0.00317 309 68 3643 19 4 173 -7.100 0.462 2.300 0.442 -0.00282 308 68 3643 87 4 147 -7.800 0.532 -0.200 0.236 -0.00095 295 71 3644 9 2 73 -1.500 0.172 -7.900 0.560 -0.00254 114 58 3644 11 4 157 -1.300 0.620 -7.900 0.813 -0.00378 114 58 3644 64 4 127 -0.500 0.557 -6.900 0.553 -0.00315 107 62 3644 117 4 90 -1.800 0.155 -6.100 0.148 -0.00224 99 65 3644 170 4 64 2.200 0.107 -5.600 0.163 -0.00225 89 66 3644 222 4 66 2.800 0.149 -3.600 0.152 -0.00308 80 67 3644 274 4 66 2.000 0.223 -1.600 0.168 -0.00393 71 66 3644 11 2 75 -1.400 0.382 -7.800 1.049 -0.00306 114 58 3646 21 4 76 -6.500 0.139 0.700 0.218 0.03726 233 83 3646 68 4 68 -7.900 0.159 5.500 0.159 0.03671 266 85 3647 9 4 64 -7.700 0.343 4.600 0.317 0.01524 265 81 3647 62 4 62 -6.300 0.186 7.300 0.163 0.01105 289 81 3647 113 4 60 -4.800 0.113 9.000 0.139 0.00602 309 81 3647 165 4 69 -3.400 0.329 10.800 0.376 0.00147 325 80 3648 11 2 24 2.700 0.160 10.700 0.140 -0.00660 3 73 3648 11 4 53 2.700 0.617 10.600 0.402 -0.00690 3 73 3648 62 4 41 2.400 0.397 9.500 0.815 -0.00874 13 73 3649 11 4 58 -3.000 0.784 9.500 0.429 -0.00625 340 71 3649 22 4 40 -3.100 0.171 10.200 0.093 -0.00593 342 72 3650 10 4 51 -4.400 0.607 8.900 0.398 -0.00387 335 70 3650 63 4 42 -4.900 0.186 9.600 0.097 -0.00496 342 72 3650 113 4 52 -4.000 0.177 9.800 0.137 -0.00434 347 75 ---=== LTMATCH RESULTS ===--- Run Field nFields alt az nGood rowMean rowSig colMean colSig rot ------------------------------------------------------------------------ 3642 27 1 72 219 65 -0.573 0.312 -0.470 0.210 0.00158 3642 27 1 72 219 76 -0.076 0.233 -0.381 0.131 0.00128 3642 27 1 72 219 74 0.390 0.220 -0.444 0.176 0.00149 3642 27 1 72 219 80 0.979 0.188 -0.525 0.281 0.00176 3642 27 1 72 219 73 1.300 0.131 -0.650 0.211 0.00218 3642 43 1 73 220 75 0.129 0.249 -0.602 0.191 0.00202 3642 43 1 73 220 74 0.576 0.311 -0.514 0.226 0.00173 3642 43 1 73 220 75 0.954 0.413 -0.460 0.199 0.00154 3642 43 1 73 220 72 1.425 0.330 -0.462 0.202 0.00155 3642 43 1 73 220 73 1.763 0.360 -0.709 0.226 0.00238 3643 99 1 71 249 60 -0.366 0.370 -2.027 0.369 0.00681 3643 99 1 71 249 66 0.314 0.356 -1.875 0.258 0.00630 3643 99 1 71 249 63 0.598 0.210 -1.923 0.279 0.00647 3643 99 1 71 249 23 1.267 0.252 -1.898 0.163 0.00638 3643 99 1 71 249 67 1.872 0.331 -1.763 0.164 0.00593 3643 116 1 71 254 60 0.468 0.280 -1.740 0.234 0.00585 3643 116 1 71 254 53 1.111 0.254 -1.659 0.204 0.00558 3643 116 1 71 254 51 1.549 0.191 -1.651 0.219 0.00555 3643 116 1 71 254 64 1.718 0.238 -1.699 0.303 0.00571 3643 116 1 71 254 64 2.502 0.269 -1.711 0.260 0.00575 3644 127 1 65 84 25 1.464 0.203 0.912 0.422 -0.00307 3644 127 1 65 84 33 1.518 0.173 1.063 0.226 -0.00357 3644 127 1 65 84 34 1.550 0.179 0.839 0.155 -0.00282 3644 127 1 65 84 20 1.533 0.175 0.674 0.210 -0.00227 3644 127 1 65 84 24 1.434 0.212 0.772 0.237 -0.00259 3644 146 1 66 87 19 1.068 0.354 2.717 0.140 -0.00913 3644 146 1 66 87 25 1.023 0.272 2.801 0.197 -0.00942 3644 146 1 66 87 23 1.096 0.261 2.648 0.200 -0.00890 3644 146 1 66 87 28 1.047 0.228 2.604 0.183 -0.00875 3644 146 1 66 87 22 1.046 0.160 2.660 0.290 -0.00894 3644 181 1 67 94 15 1.203 0.262 3.059 0.169 -0.01029 3644 181 1 67 94 15 1.106 0.209 3.242 0.208 -0.01090 3644 181 1 67 94 22 1.213 0.218 3.191 0.256 -0.01073 3644 181 1 67 94 18 1.347 0.282 3.083 0.207 -0.01037 3644 181 1 67 94 24 1.394 0.328 2.926 0.323 -0.00984 3644 198 1 67 97 17 1.131 0.253 2.835 0.164 -0.00953 3644 198 1 67 97 13 0.942 0.219 2.721 0.172 -0.00915 3644 198 1 67 97 13 1.106 0.346 3.012 0.314 -0.01013 3644 198 1 67 97 13 0.879 0.357 2.889 0.437 -0.00971 3644 198 1 67 97 10 1.334 0.352 3.035 0.498 -0.01021 3644 232 1 67 103 12 1.082 0.267 1.990 0.480 -0.00669 3644 232 1 67 103 15 1.122 0.373 1.905 0.343 -0.00641 3644 232 1 67 103 20 1.091 0.366 1.836 0.189 -0.00617 3644 232 1 67 103 10 1.244 0.381 1.827 0.186 -0.00614 3644 232 1 67 103 17 1.232 0.503 2.018 0.260 -0.00679 3644 251 1 66 106 10 -0.037 0.277 2.192 0.290 -0.00737 3644 251 1 66 106 5 0.140 0.315 2.290 0.223 -0.00770 3644 251 1 66 106 10 0.236 0.290 2.424 0.290 -0.00815 3644 251 1 66 106 6 -0.038 0.187 2.424 0.303 -0.00815 3644 251 1 66 106 11 0.306 0.272 2.430 0.303 -0.00817 3644 285 1 66 111 13 0.786 0.184 1.585 0.193 -0.00533 3644 285 1 66 111 6 0.342 0.172 1.612 0.393 -0.00542 3644 285 1 66 111 14 0.486 0.273 1.472 0.628 -0.00495 3644 285 1 66 111 8 0.655 0.328 1.975 0.215 -0.00664 3644 285 1 66 111 11 0.486 0.322 1.932 0.277 -0.00650 3644 303 1 65 113 12 0.255 0.457 1.764 0.312 -0.00593 3644 303 1 65 113 13 0.252 0.350 2.277 0.551 -0.00766 3644 303 1 65 113 6 0.437 0.155 3.103 0.525 -0.01043 3644 303 1 65 113 10 0.661 0.181 2.255 0.308 -0.00758 3644 303 1 65 113 15 0.405 0.286 2.019 0.293 -0.00679 ltMatch does not seem to have run (or not completed) on subsequent runs. ---=== SPECTROSCOPY DATA SUMMARY ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 18994, plate -9999 ------- 20:43 18994 0.0 bias ----- sequence 18995, plate 1018 ------- 22:23 18995 10.0 flat 22:25 18996 2.0 arc 22:29 18997 10.0 flat 22:32 18998 2.0 arc 22:37 18999 2.1 arc 22:39 19000 2.1 arc 22:56 19001 2.1 arc 22:59 19002 2.1 arc 23:26 19003 2.1 arc 23:29 19004 2.1 arc ----- sequence 19005, plate -9999 ------- 23:36 19005 0.0 bias ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ Imaging with cleared offsets all night. ---=== DATA TAPE SUMMARY ===--- Goes: JL5967-JL5972, JL5983 Stays: JL5974-JL5979, JL5984 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ Apologies for the absence of entries here. Seeing was highly variable during the night, so individual samples would have been of little use anyway. See the seeingRun plots for these imager runs for details. ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 20:09Z 50 19 12 217 (SW) 139 - Photometric 20:42Z 47 18 15 228 (SW) 173 - " 21:18Z 51 20 7 203 (SSW) 153 - " 21:54Z 48 20 5 255 (WSW) 146 - " 22:26Z 44 18 9 242 (WSW) 162 - " 22:58Z 46 19 11 233 (SW) 157 - " 23:31Z 44 18 5 265 (W) 219 - " 00:04Z 42 20 2 225 (SW) 297 - " 00:35Z 39 20 6 232 (SW) 650 - " 01:04Z 38 20 0 215 (SW) 743 - " 01:36Z 39 18 3 295 (WNW) 457 - " 02:08Z 39 15 6 351 (NNW) 152 - " 02:40Z 40 17 4 17 (NNE) 122 - " 03:13Z 40 17 13 357 (NNW) 133 - " 03:49Z 40 17 9 21 (NNE) 146 - " 04:21Z 40 17 4 48 (NE) 134 - " 04:53Z 39 17 3 254 (WSW) 161 - " 05:26Z 39 17 7 31 (NNE) 203 - " 05:58Z 40 18 12 8 (N) 145 - " 06:30Z 43 13 14 26 (NNE) 98 - " 07:03Z 42 12 18 29 (NNE) 91 - " 07:35Z 42 10 12 36 (NE) 52 - " 08:07Z 43 8 3 31 (NNE) 39 - " 08:39Z 43 12 2 34 (NE) 51 - " 09:12Z 41 15 5 21 (NNE) 103 - " 09:44Z 41 15 5 1 (N) 85 - " 10:16Z 40 17 3 25 (NNE) 103 - " 10:49Z 40 17 3 356 (NNW) 82 - " 11:21Z 38 18 9 334 (NNW) 85 - " 11:53Z 40 18 9 356 (NNW) 100 - " 12:25Z 38 17 3 318 (NW) 127 - " 12:58Z 40 17 6 353 (NNW) 123 - " 13:30Z 40 17 8 322 (NW) 96 - " ---=== TELESCOPE STATUS ===--- 23:35Z Fans on, doors open 00:35Z Doors closed for imager bias 01:05Z Enclosure off 13:20Z Enclosure on, shut down. Status at 13:34Z: Telescope stowed at: 30 deg Instrument mounted: Imager Counterweights at: 729 (upper limit) Autofill systems: On 180L LN2 dewar weights: Spectro 271 lb (filling) Imager 107 lb Interlocks bypassed: None ---=== SOFTWARE USED ===--- IOP/SOP: v3_105_0 Watcher: v2_20_0 MCP: v5_17_0 TPM: tpm_v2_24_0 AstroDa: v14_47 TCC: TCC 2.6.8 November 13 2002 sdssProcedures: v1_62 SoS: v4_9_13 hoggPT: v1_5_8 plate-mapper: V2_10 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0820 0.0790 Axial B 0.7990 0.7970 Axial C 0.8210 0.8240 Trans D -9.0790 -9.1130 Lateral E 1.8460 1.8870 Lateral F 0.0000 1.4300 GALILS Commanded: 5400. -3700. 900. -200. 31550. 30650. Actual: 5400. -3700. 900. -200. 31550. 30650. SETMIR VALUES PriDesOrient: 0.00 -11.80 23.00 1256.90 642.10 PriOrient: 0.00 -12.16 22.81 1257.41 642.19 SECONDARY: ---------- Focus: 0.00 Air Temp.: 7.8 Alt.: 30.398060 MIGS TONIGHT NOMINAL Axial A 1.5170 1.5170 Axial B 1.1570 1.1560 Axial C 1.1000 1.0990 Trans D -0.7040 -0.7070 GALILS Commanded: 1619680. 1555214. 1576336. -3400. -7900. Actual: 1619650. 1555250. 1576350. -3400. -7900. SETMIR VALUES SecDesOrient: 1257.00 0.00 -20.00 0.00 130.98 SecOrient: 1257.00 -0.01 -20.03 -0.50 130.89 ---=== PROBLEMS IN DETAIL ===--- Problem #1 - Axes aborted ------------------------- Following run 3646 when we realised the azimuth was going to hit the wrap liimit, we sent the telescope to azimuth 180, then to azimuth 271 to get on the strip again. During this last slew, the alittude then the azimuth axes aborted. We found the following unusual messages in the murmur log at that time: 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_I_trcInfo Done repositioning altitude to 20718006 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_E_trcErr altitude frame deleted due to expiration time 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_E_trcErr altitude frame deleted due to expiration time 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_E_trcErr altitude frame deleted due to expiration time 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_E_trcErr altitude frame deleted due to expiration time 2003-02-01 08:05:13Z sdssmcp tmAlt dsc_E_trcErr altitude frame deleted due to expiration time then 2003-02-01 08:05:24Z sdssmcp tmAz dsc_I_trcInfo Done repositioning azimuth to 48548912 2003-02-01 08:05:24Z sdssmcp tmAz dsc_E_trcErr azimuth frame deleted due to expiration time 2003-02-01 08:05:24Z sdssmcp tmAz dsc_E_trcErr azimuth frame deleted due to expiration time then 2003-02-01 08:05:50Z sdssmcp ampMgt dsc_E_trcErr MGT: bad az state ABORT_EVENT: ID_ERROR_LIMIT 2003-02-01 08:05:50Z sdssmcp ampMgt dsc_I_trcInfo Setting brake for axis azimuth 2003-02-01 08:05:50Z sdssmcp tBrakes dsc_I_trcInfo Taking axis azimuth out of closed loop 2003-02-01 08:05:51Z sdssmcp TCC dsc_I_trcInfo tcc_serial blocks on tTelnetCmd [0] 2003-02-01 08:05:51Z sdssmcp tmAz dsc_I_trcInfo CALC FRAME: next frame required to finish then 2003-02-01 08:06:02Z sdssmcp ampMgt dsc_E_trcErr MGT: bad alt state ABORT_EVENT: ID_ERROR_LIMIT 2003-02-01 08:06:02Z sdssmcp ampMgt dsc_I_trcInfo Setting brake for axis altitude 2003-02-01 08:06:02Z sdssmcp tBrakes dsc_I_trcInfo Taking axis altitude out of closed loop An axis stop then an axis init, and reissued the track command and all was well. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Problem #2 - endNight could not be run by the other observer ------------------------------------------------------------ Dan was driving. His X server crashed at the end of the night. Pete tried to run endNight, and it failed as follows: im> endNight -doImager -doTpm endNight: Let me ask you some questions right now. endNight: Do you want to ship tapes? [y] y endNight: Did all the sdssid?-1 drives make it through the night? [y]: y endNight: enter one or more run numbers to archive [default: 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650] 3641 3643 3644 3647 3650 Error: UX:chmod: WARNING: chmod() failed on /astrolog/52671/runDirs: Operation not permitted im> ls -l /astrolog/52671/runDirs -rw-rw-rw- 1 long dss 25 Feb 1 12:57 /astrolog/52671/runDirs im> whoami prn im> groups dss products im> When Dan recovered his X server, he was able to start endNight without incident. It is still running as this log is being mailed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++