APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday April 17, 2006 (MJD 53843) ---=== OBSERVING TEAM ===--- Dayshift: Howard Brewington --------------------------- Observers: Kaike Pan, Dan Long ---=== OBSERVING PLAN ===--- Shakedown and Science! ---=== OBSERVING SUMMARY ===--- The night was lost to dust. Counts remained around 4000 all night long. Impressive accumulations were seen on car windshields and other surfaces. ---=== OBSERVING LOG ===--- Afternoon: ----------- There were a few problems discovered during the afternoon checkout. As yesterday, the video display monitors in the control room were unhappy when I did an imager bias. A vertical noise bar (2.5-inch wide) was back in Astro 1 and 2 displays. I could see a smaller noise bar in most of the photo displays as well. I talked with Jon Brinkman about this problem, and he filed a problem report (PR-6643). While doing the checkout at the 2.5-meter, the telescope stopping accepting TCC commands. So, I had to reboot the MCP to resolve this problem. Next, the telescope aborted in the Alt axis (at ~78 degrees) as it was moving to the commanded 90-degrees position. I noticed, though, that the telescope was slightly out of balance, which could have caused this problem. Then, I noticed that the Az fiducials were not being read as I did test slews. However, cleaning the Az-fiducial read head with alcohol fix this problem. I used VERY light pressure with the Kimwipe as not to upset the alignment of the read head. We could not ventilate the 2.5-meter enclosure because of high dust (4.5k) at sunset. Night: ----------- 02:00Z We start the night with the engineering camera mounted in anticipation of getting a pointing model. Dust levels quite high at the start of the night and wind speed near the limit as well. Around sunset the dust level started an encouraging down trend. It went from nearly 6000 to about 2500 by 04:00Z. Unfortunately that's where it stopped and a short time later it climbed back over 4000. It stayed between 3500 and 4500 the rest of the night. The engineering camera remains on the telescope as we still need a pointing model. 10:30Z With only half an hour until twilight and no change in conditions, we call it a night. endNight quickly ran through its modest haul of data. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 6091 23:22Z 23:42Z 100 O -94.41 -89.25 49 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): QA Procedures Done (y/n): UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 38655, plate -9999 ------- 23:24 38655 0.0 bias 00:20 38656 0.0 bias 00:39 38657 0.0 bias ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL Stays: JL ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:06Z 58 14 23 248 (WSW) 6049 - Clear 23:36Z 56 11 31 280 (W) 5410 - Clear 00:08Z 56 12 25 256 (WSW) 5676 - Clear 00:41Z 54 11 18 245 (WSW) 5404 - Clear 01:13Z 52 8 23 258 (WSW) 4828 - Clear 01:42Z 50 7 18 260 (W) 4404 - Clear 02:14Z 49 6 15 252 (WSW) 4302 - Clear 02:47Z 49 5 20 235 (SW) 4191 - Clear 03:19Z 47 5 16 235 (SW) 3761 - Clear 03:51Z 47 5 14 242 (WSW) 3444 - Clear 04:23Z 48 4 22 268 (W) 3677 - Clear 04:55Z 48 5 21 265 (W) 3964 - Clear 05:27Z 47 4 18 270 (W) 4104 - Clear 05:59Z 47 5 17 268 (W) 4549 - Clear 06:32Z 47 5 16 255 (WSW) 4115 - Clear 07:04Z 46 5 10 259 (W) 4300 - Clear 07:36Z 45 5 13 269 (W) 4296 - Clear 08:08Z 45 5 12 270 (W) 4304 - Clear 08:40Z 45 6 13 269 (W) 4288 - Clear 09:12Z 44 6 12 286 (WNW) 4410 - Clear 09:44Z 44 7 15 299 (WNW) 4165 - Clear 10:17Z 43 7 11 272 (W) 4034 - Clear ---=== TELESCOPE STATUS ===--- Enclosure never opened Stowed at 30 deg alt, engcam installed. Spectro auto-fill connected. Spectro dewar 10:30Z Dewar wt 107 lb Imager dewar 10:30Z Dewar wt 156 lb No interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v4_21_0 Watcher: v2_34_0 MCP: v6_3_1 TPM: tpm_v3_3_0 AstroDa: v15_11_1 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v2_14 SoS: v5_1_0 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -5.8510 -5.8440 Axial B -5.6730 -5.6770 Axial C 0.9420 0.9420 Trans D -10.0030 -9.9940 Lateral E 10.3759 10.3759 Lateral F 11.9380 11.9380 GALILS Commanded: 4700. -2450. 3000. -7800. 3300. 3000. Actual: 4700. -2450. 3000. -7800. 3300. 3000. SETMIR VALUES PriDesOrient: 0.00 -1.68 7.05 385.25 92.02 PriOrient: 0.00 -1.52 7.02 384.99 93.81 SECONDARY: ---------- Focus: 0.00 Air Temp.: 14.1 Alt.: 30.042308 MIGS TONIGHT NOMINAL Axial A 1.5400 1.5420 Axial B 1.0540 1.0470 Axial C 1.1690 1.1650 Trans D -0.1290 -0.1240 GALILS Commanded: 1593816. 1602824. 1554446. -6800. -5900. Actual: 1593450. 1603650. 1554300. -6800. -5900. SETMIR VALUES SecDesOrient: 1257.00 15.87 0.00 -50.00 136.76 SecOrient: 1256.92 15.68 -0.33 -49.77 136.86 ---=== PROBLEMS IN DETAIL ===---