APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday September 6, 2002 (MJD 52524) ---=== OBSERVING TEAM ===--- Pete Newman Scot Kleinman Jerzy Krzesinski (day) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Not photometric, but we got three plates done and got some data on two. We also discovered what appears to be a bug in the new machanicals that happens with endStare. resumeStare seems to work, and is the workaround (see log section) for when endStare doesn't. Monsoon not quite done Low wind from east, high from west Not photometric! ---=== OBSERVING LOG ===--- Ominous clouds at twilight - we crack doors, but remain closed. They weant away and re opened around 02:30. First up, Cart 4 plate, 1022. We needed an fk5 star, but it was very close when we got there. FInished in three additional exposures of 20min each. Clouds still coming and going. Next up, Cart 1 plate 1034- guideStars on the gotoField. Seeing was pretty bad, though, as supported by the 3.5m gaggle. Clouds continued to worsen and efficiency nose-dived. The third exposure, despite some judicious pause and resumeStares as useless. We apofixed it to bad. Next up, cart 2 plate 683. Guide stars on the edge on the gotoField. We finished this in three exposures totalling 55m. Next: Cart 3, plate 1094. GOTGTF again. We had to endStare -abort another exposure here and had similar problems. This really looks like a new machanicals problem. In this instance, we found that endStare -abort did not reset the exposure time remaining in the mechanicals, but resumeStare did. So the workaround is do do your endStare, then follow it with a resumeStare setting the new exposure time to something that will end soon. Once you do that, and the time passes, goStare will behave again. Got it? (We updated the PR with this information.) Combined with previous exposures, we polished off this plate. The smear was horrid, but so were the clouds... Next: Cart 9 plate 1086. GOTGTF. We didn't quite finish this plate after three exposures before twilight arrived (and we were already far enough past this plate's bedtime.) The last exposure was useless as it was. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 3328 22:53Z 23:17Z 100 O 38.39 44.45 53 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 ===--- UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 16245, plate -9999 ------- 02:26 16245 0.0 bias ----- sequence 16246, plate 1022 ------- 02:49 16246 10.0 flat 02:52 16247 2.0 arc 03:23 16248 1201.0 target 03:46 16249 1200.0 target 04:12 16250 1201.0 target 04:20 16251 240.0 smear 04:23 16252 10.0 flat 04:25 16253 2.0 arc ----- sequence 16254, plate 1034 ------- 04:48 16254 10.0 flat 04:51 16255 2.0 arc 05:16 16256 1200.0 target 05:38 16257 1201.0 target 06:07 16258 1201.0 target 06:46 16259 1201.0 ignore 06:54 16260 240.0 smear ----- sequence 16261, plate 683 ------- 07:20 16261 10.0 flat 07:23 16262 2.0 arc 07:49 16263 1200.0 target 08:12 16264 1200.0 target 08:30 16265 902.0 target 08:38 16266 240.0 smear ----- sequence 16267, plate 1094 ------- 08:54 16267 10.0 flat 08:56 16268 2.0 arc 09:17 16269 1000.0 target 09:46 16270 1200.0 target 09:54 16271 240.0 smear ----- sequence 16272, plate 1086 ------- 10:06 16272 10.0 flat 10:09 16273 2.0 arc 10:34 16274 1201.0 target 10:57 16275 1201.0 target 11:20 16276 1200.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 03:03Z 4 1022 41.70 0.0015 49.18 -0.0018 213.96 -0.0042 0.999890 04:56Z 1 1034 32.93 0.0014 52.44 -0.0029 207.18 0.0186 0.999910 07:28Z 2 683 7.16 0.0033 57.02 0.0006 186.00 0.0071 1.000220 07:36Z 2 683 3.77 0.0033 57.17 0.0006 183.15 0.0071 1.000220 09:00Z 3 1094 -37.29 0.0036 51.01 0.0014 149.35 0.0025 1.000190 10:13Z 9 1086 -40.72 0.0030 49.70 0.0013 146.71 -0.0060 1.000230 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- one tape Goes another Stays ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 03:00Z 4 1022 0.99989 1085 1874 -210 42 48.8 15.3 13 108 - 2.1 04:54Z 1 1034 0.99991 888 1690 -220 34 52.3 13.9 18 129 - 2.6 07:26Z 2 683 1.00022 -2171 -858 -220 8 57.0 12.4 17 142 - 2.5 09:00Z 3 1094 1.00019 -1875 -646 -270 -37 51.0 12.6 17 134 - 1.8 10:20Z 9 1086 1.00023 -2270 -995 -300 -43 48.6 12.7 15 136 - 2.1 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 00:54Z 62 44 11 122 (ESE) 255 - 01:26Z 60 44 9 87 (E) 261 - 01:58Z 58 44 13 87 (E) 252 - 02:14Z 58 44 13 108 (ESE) 204 - 02:47Z 58 43 13 107 (ESE) 266 - 03:17Z 58 44 19 127 (SE) 330 - 03:47Z 58 45 18 124 (SE) 322 - 04:20Z 57 46 21 128 (SE) 326 - 04:51Z 57 46 19 125 (SE) 353 - 05:24Z 56 47 18 132 (SE) 351 - 05:56Z 55 46 12 122 (ESE) 376 - 06:29Z 55 45 14 131 (SE) 353 - 07:01Z 54 44 15 132 (SE) 347 - 07:32Z 53 44 14 143 (SE) 307 - 08:05Z 54 44 17 136 (SE) 244 - 08:38Z 54 43 16 133 (SE) 323 - 09:09Z 55 42 14 152 (SSE) 295 - 09:42Z 54 42 18 130 (SE) 328 - 10:14Z 54 42 17 135 (SE) 300 - 10:46Z 54 42 13 141 (SE) 245 - 11:19Z 53 43 9 129 (SE) 243 - ---=== TELESCOPE STATUS ===--- Doors, ex. fan: ~01:30 Opened, cone fan: ~02:30 Closed: ~11:30 ---=== SOFTWARE USED ===--- IOP/SOP: v3_82_7 Watcher: v2_19_0 MCP: v5_13_4 TPM: tpm_v2_16_0 AstroDa: v14_47 TCC: 2.6.5 sdssProcedures: v1_51 SoS: v4_9_10 hoggPT: v1_5_8 plate-mapper: v4_1_0 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0880 0.0890 Axial B 0.8030 0.8040 Axial C 0.0810 0.0790 Trans D -1.5230 -1.5180 Lateral E 1.8260 1.8220 Lateral F 0.0000 0.0000 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.: 16.4 Alt.: 30.012087 MIGS TONIGHT NOMINAL Axial A 1.4620 1.4640 Axial B 1.1510 1.1520 Axial C 1.0750 1.0770 Trans D -0.7180 -0.7160 GALILS Commanded: 1661545. 1539259. 1550244. -4550. -1550. Actual: 1661550. 1539250. 1550250. -4550. -1550. SETMIR VALUES SecDesOrient: 1257.00 10.00 -40.00 -100.00 64.19 SecOrient: 1256.99 10.01 -40.00 -100.18 64.08 ---=== PROBLEMS IN DETAIL ===--- Problem #1 endStare read out, but didn't tell the mechanicals the exposure was over! (PR 4214) Here's our sequence of commands: 2002-09-07 06:06:47Z sdsshost IOP 76376 TEXTONLY SOPGUI: endStare -read 2002-09-07 06:08:27Z sdsshost IOP 76376 TEXTONLY SOPGUI: stopGuider 2002-09-07 06:08:56Z sdsshost IOP 76376 TEXTONLY SOPGUI: startGuider 15 2002-09-07 06:08:57Z sdsshost IOP 76376 TEXTONLY SOPGUI: stopGuider 2002-09-07 06:09:44Z sdsshost IOP 76376 TEXTONLY SOPGUI: startGuider 20 2002-09-07 06:11:17Z sdsshost IOP 76376 TEXTONLY SOPGUI: doNextScience 1200 Unfortunately, we didn't realize the goStare hadn't taken until it was about time for it to read out. Then we saw this in the SOP window: SOPGUI: endStare -read appending END EXPOSURE TIME is: 1201 sp1 cameraNag {} t-g-sdss-2.apo.nmsu.edu 2200 sp2 cameraNag {} t-g-sdss-2.apo.nmsu.edu 2200 sp1 camstat {} t-g-sdss-2.apo.nmsu.edu 2100 sp2 camstat {} t-g-sdss-2.apo.nmsu.edu 2200 1031377216 1031378814 2002-09-07 06:07:14Z: scheduling gangs2Unix transfers 2002-09-07 06:07:14Z: finished with iccExec -riskyOn data -async sd1 readoutBegin sp1 cameraStart {} t-g-sdss-2.apo.nmsu.edu 2100 sp2 cameraStart {} t-g-sdss-2.apo.nmsu.edu 2200 Waiting for read to finish Seq 16258 Exp 16258 Frame 16258 Do not schedule startFlushCharge sp1 200 Do not schedule startFlushCharge sp2 200 =====endStare: done =========================================== mcpPut: SYSTEM.STATUS SOPGUI: stopGuider SOPGUI: startGuider 15 Using 15 second gcam exposures SOPGUI: stopGuider SOPGUI: startGuider 20 Using 20 second gcam exposures SOPGUI: doNextScience 1200 mcpPut: ffs.open mcpPut: SYSTEM.STATUS mcpPut: SYSTEM.STATUS Opened Flat Field Screen Issuing goStare science with 1200 exposure 2002-09-07 06:11:22Z: There is an ongoing exposure on sp1. There is an ongoing exposure on sp1 goStare was not successful, trying again There is an ongoing exposure on sp1 goStare was not successful, trying again There is an ongoing exposure on sp1 goStare was not successful, trying again There is an ongoing exposure on sp1 goStare was not successful, trying again There is an ongoing exposure on sp1 goStare was not successful, trying again There is an ongoing exposure on sp1 goStare was not successful, trying again Could not do goStare in 5 attempts 2002-09-07 06:14:53Z 43 sp1 camcheck 2002-09-07 06:14:55Z 43 sp1 mechstat 2002-09-07 06:14:57Z 43 sp2 camcheck 2002-09-07 06:15:00Z 43 sp2 mechstat IOP running as Backup Relay Server requestListen: listening a new endStare didn't work (saying no exposure was in progress) , neither did a resumeStare (saying the same), or a new goStare (saying an exposure WAS in progress), but a goStare -init worked and the spectrographs were happy. Here's the screen session of the above attempts: p1> goStare 2 Flavor of this image (bias, dark, flat, arc, science, smear, engineering, ignore, help) [target]: ignore 2002-09-07 06:43:50Z: There is an ongoing exposure on sp1. Error: There is an ongoing exposure on sp1 sp1> resumeStare 2 Changing exposure time to 2 seconds appending ALTER Error: can't read "scheduled(wait_for_endStare)": no such element in array sp1> goStare -init 0 Flavor of this image (bias, dark, flat, arc, science, smear, engineering, ignore, help) [ignore]: ... success!