APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday August 25, 2003 (MJD 52877) ---=== OBSERVING TEAM ===--- Swing: Pete Newman Night: Scot Kleinman, Steph Snedden ---=== OBSERVING PLAN ===--- Science. ---=== OBSERVING SUMMARY ===--- Most of the night lost to clouds and high humidity. No plates completed, but good signal on a high S/N F star plate. ---=== OBSERVING LOG ===--- Swing shift: Overcast with occasional light rain during the afternoon. Spectrographs focus checked (Tamb = 13C) and found to be good. During the spectro checkout, there were no recurrances of the exposure time-out problems seen last night. Night shift: Threatening clouds kept us closed past sunset.We opened at about 03:00Z, just in time for the sucker hole to start closing. 03:24Z - Cartridge 2, plate 1415. FK5 was on the edge of the fiber with last night's offsets. We could barely see it through the clouds. We waited. 04:26Z - The clouds were bad enough that we decided to close. While closing, we saw evidence of rain in the Tularosa basin. Closing was a good idea. At some point while we were waiting on clouds, sirrobert froze and required a hard boot when we went down to the telescope. 05:44Z - Lightning nearby. 06:33Z - High humidity . 08:51Z - Dewpoint depression climbing. We wait to make sure it is real and not a "bounce". 09:36Z - We finally go on the sky with cartridge 5, plate 1471. Guide stars on goToField. This is a high S/N plate (F star plate) and we could not finish it, but did get more than halfway done with 4500 s total exposure time. The last exposure was taken after 18 degree twilight, so if that is a problem, it should not be reduced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4080 23:40Z 00:05Z 100 O 37.98 44.23 51 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 22088, plate -9999 ------- 23:40 22088 0.0 bias ----- sequence 22089, plate 1415 ------- 23:47 22089 2.1 arc focus check 23:50 22090 2.1 arc focus check ----- sequence 22091, plate -9999 ------- 01:59 22091 0.0 bias ----- sequence 22092, plate -9999 ------- 02:25 22092 0.0 bias ----- sequence 22093, plate 1471 ------- 21.3 50.9 22.2 46.2 09:31 22093 0.0 bias 10:10 22094 900.1 target 10:14 22095 10.0 flat 10:16 22096 2.0 arc 10:34 22097 900.1 target 10:52 22098 900.1 target 11:10 22099 900.1 target 11:28 22100 900.1 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 09:57Z imager 182.20 -0.0073 76.16 0.0018 2.64 -0.0176 1.000130 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- Goes: JL6667 Stays: JL6668 ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 09:57Z cart 5 1.00013 -1283 -190 -250 182 76.2 11.9 4 355 - 1.2 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:00Z 57 49 12 135 (SE) 511 - mcl 23:33Z 57 48 7 108 (ESE) 346 - mcl 00:05Z 58 48 0 198 (SSW) 327 - mcl 00:37Z 57 48 1 97 (E) 413 - mcl 01:17Z 58 46 0 211 (SSW) 394 - mcl 01:53Z 57 48 2 93 (E) 360 - mcl 02:26Z 57 45 4 89 (E) 336 - mcl 02:58Z 56 46 8 81 (E) 411 - mcl 03:30Z 56 47 8 86 (E) 389 - mcl 04:02Z 55 46 8 87 (E) 344 - mcl 04:35Z 55 46 13 115 (ESE) 265 - mcl 05:07Z 55 46 17 128 (SE) 239 - mcl 05:39Z 55 46 14 122 (ESE) 236 - mcl 06:11Z 54 47 14 111 (ESE) 238 - mcl 06:44Z 53 48 15 125 (SE) 301 - mcl 07:16Z 52 48 8 120 (ESE) 393 - mcl 07:48Z 52 48 8 103 (ESE) 519 - pcl 08:20Z 52 48 6 105 (ESE) 447 - pcl 08:52Z 55 46 0 287 (WNW) 343 - pcl 09:24Z 54 46 1 10 (N) 337 - pcl 09:54Z 53 46 1 353 (NNW) 291 - mclear 10:25Z 53 46 3 357 (NNW) 261 - mclear 10:58Z 53 46 4 4 (N) 302 - mclear 11:28Z 55 45 9 52 (NE) 225 - mclear ---=== TELESCOPE STATUS ===--- 02:20Z - Doors opened, fans on 03:22Z - opened enclosure 06:30Z - Doors closed. Fans & blowers off. High humidity 09:30Z - Opened again. Fans & blower on. 11:39Z - Closed. Fans & blower off. Telescope at 30 deg alt with cartridge 5 mounted. Counterweights at 270 11:52Z - Imager dewar weight: 150 11:52Z - Spectro dewar weight: 186 ---=== SOFTWARE USED ===--- IOP/SOP: v3_119_0 Watcher: v2_24_0 MCP: v5_20_0 TPM: tpm_v2_30_0 AstroDa: v14_47 TCC: TCC 2.7.1 July 22 2003 sdssProcedures: v1_73 SoS: v4_9_13 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0960 0.0790 Axial B 0.8180 0.7970 Axial C 0.8300 0.8240 Trans D -9.0940 -9.0560 Lateral E 1.8370 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.: 30.054830 MIGS TONIGHT NOMINAL Axial A 1.5120 1.5170 Axial B 1.1440 1.1560 Axial C 1.0970 1.0990 Trans D -0.6990 -0.7070 GALILS Commanded: 1619668. 1555246. 1576354. -3400. -7900. Actual: 1619650. 1555250. 1576350. -3400. -7900. SETMIR VALUES SecDesOrient: 1257.00 0.00 -20.00 0.00 130.98 SecOrient: 1257.01 -0.01 -20.02 -0.49 130.89 ---=== PROBLEMS IN DETAIL ===--- 04:24Z - Windscreen touch in altitude Unknown time - sirrobert unresponsive (see main log). In spite of an apparently trouble-free slew, we got the following from watcher: AxisNoSlew:az (axis cannot slew: 2003-08-26 11:29:23Z) AxisNoSlew:alt (axis cannot slew: 2003-08-26 11:29:23Z)