APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Thursday June 26, 2003 (MJD 52817) ---=== OBSERVING TEAM ===--- Swing: Steph Snedden night: Howard Brewington and Jurek Krzesinski ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- No problems tonight, but we were closed for half of the night due to high humidity. Seeing variable around 1.8". We've done one plate: cart 7 plt 1391 and got useful signal on cart 9 plt 1033. ---=== OBSERVING LOG ===--- Swing shift: ------------ Jon and I checked out the DIMM alt/dec drive motor and didn't see anything obviously broken or wrong. Afternoon checkout went without problems (and yes, the bias gangs transferred okay). Spectro focus was checked and a small adjustment was made (details at end of problems section). The enclosure circulation alarm was beeping when I went to the lower enclosure, but I didn't see anything obviously wrong. I made sure the circulation fans came on properly, and when I shut them back off, the alarm also went off. High humidity prevented the dim testing tonight. Night ----- Humidity high at the beginning of the night, we stay closed. We got a few of these, while the telescope was in parking position, not touched by anyone: altitude (Windscreen touched in altitude: UP (2003-06-27 03:33:10Z sdssmcp): 2003-06-27 03:33:30Z ) 06:50Z The humidity dropped. We decided to start with spectroscopy (east wind and low air temperature after a hot day might bring a bad seeing). While opening: Alt slip detector went off during a slew for opening - the telescope appeared to be too bottom heavy (to save some observing time we refilled dewars inside enclosure while waiting for better conditions), so we reset the slips and moved counterweights a little (260 now seems to be ok, or at least after refilling). Then the balance was good and we opened without a problem. 07:10Z cart 7 plt 1391 mounted, stars on slew. Seeing is deteriorating, so we sticked with spectroscopy. After pushing the last exposure beyond the expiration time, we've done the plate with 3 exposures. 08:50Z cart 9 plt 1033 mounted, fk5 used to find the guide stars. Seeing variable, but good for spectroscopy. Got some useful signal on that plate, and we had to close because of low dew point. 10:08Z High humidity - closing. EndNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4016 22:48Z 23:03Z 100 O -34.10 -30.33 39 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): yes QA Procedures Done (y/n): yes UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 21540, plate -9999 ------- 23:00 21540 0.0 bias ----- sequence 21541, plate 1371 ------- 23:49 21541 10.0 flat 23:51 21542 2.0 arc 23:55 21543 2.1 arc 23:58 21544 2.1 arc 00:21 21545 2.1 arc 00:24 21546 2.1 arc 01:26 21548 0.0 bias ----- sequence 21549, plate 1391 ------- 07:24 21549 10.0 flat 07:27 21550 2.0 arc 07:46 21551 900.1 target 08:04 21552 900.1 target 08:32 21553 1500.1 target 08:40 21554 240.0 smear done ----- sequence 21555, plate 1033 ------- 08:58 21555 10.0 flat 09:00 21556 2.0 arc 09:24 21557 1200.1 target 09:52 21558 1500.1 target 10:06 21559 732.0 target all three good S/N ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 07:33Z 7 1391 265.31 0.0036 52.45 0.0015 108.08 -0.0232 1.000100 09:09Z 9 1033 41.05 0.0004 49.48 0.0005 213.44 0.0060 1.000020 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL6600 Stays: JL6601 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 07:34Z 7 1391 1.00010 -986 56 -300 265 52.4 13.1 5 145 gdr 1.8 09:09Z 9 1033 1.00002 -198 769 -250 41 49.5 11.7 12 175 -/- 1.7 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:07Z 68 31 18 320 (NW) 837 - 23:38Z 68 38 6 280 (W) 942 - 00:09Z 62 47 12 44 (NE) 629 - 00:40Z 55 47 19 74 (ENE) 648 - 01:11Z 52 47 17 71 (ENE) 775 - 01:47Z 51 47 21 74 (ENE) 978 - 02:17Z 50 47 21 74 (ENE) 1019 - 02:50Z 49 46 13 77 (ENE) 1134 - 03:20Z 49 46 16 74 (ENE) 1263 - 03:51Z 48 46 15 73 (ENE) 1085 - 04:22Z 48 46 14 76 (ENE) 954 - 04:53Z 48 46 18 74 (ENE) 886 - 05:24Z 48 47 16 66 (ENE) 855 - 05:55Z 48 47 12 76 (ENE) 869 - 06:26Z 51 44 5 89 (E) 960 - 06:56Z 53 42 2 97 (E) 1145 - 07:28Z 54 42 6 125 (SE) 1121 - 07:58Z 54 42 6 126 (SE) 1238 - 08:29Z 53 44 9 172 (S) 1417 - 09:01Z 52 46 12 143 (SE) 1564 - 09:31Z 52 46 10 171 (S) 1830 - 10:02Z 52 46 8 179 (S) 1863 - 10:34Z 51 48 11 166 (SSE) 2134 - ---=== TELESCOPE STATUS ===--- 07:00Z Telescope opened, dewars refilled, fans on. 10:20Z Telescope closed, hoses connected, fans off. ---=== SOFTWARE USED ===--- IOP/SOP: v3_113_2 Watcher: v2_21_0 MCP: v5_18_0 TPM: tpm_v2_29_0 AstroDa: v14_47 TCC: TCC 2.6.8 November 13 2002 sdssProcedures: v1_71 SoS: v4_9_13 hoggPT: v1_6_9 plate-mapper: v4_2_0 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.1010 0.0790 Axial B 0.8200 0.7970 Axial C 0.8290 0.8240 Trans D -9.0630 -9.0560 Lateral E 1.8690 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.: 14.6 Alt.: 30.294378 MIGS TONIGHT NOMINAL Axial A 1.5110 1.5170 Axial B 1.1450 1.1560 Axial C 1.0910 1.0990 Trans D -0.6960 -0.7070 GALILS Commanded: 1619712. 1555334. 1576323. -3400. -7900. Actual: 1619650. 1555250. 1576350. -3400. -7900. SETMIR VALUES SecDesOrient: 1257.00 0.00 -20.00 0.00 130.98 SecOrient: 1257.04 0.02 -20.01 -0.48 130.86 ---=== PROBLEMS IN DETAIL ===--- Spectro focus check: -------------------- Cartridge 3, T=16.5 C Before focus adjust: sp1: sp2: A=-1223 -1309 B=-1023 -1324 C=-2123 -1324 After focus adjust: A=+335 -113 B=+541 -128 C=-565 -127