APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Tuesday October 17, 2006 (MJD 54026) ---=== OBSERVING TEAM ===--- Night: Howard Brewington Dan Long Visitors: Suzanne Hawley Rok Rosker ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- The first 40 frames of the afternoon test bias (run 6462) showed the odd/even effect toggling in dewar three, with r3 and u3 being most affected. It wasn't seen in the on telescope bias. The start of the night looked decent but didn't last. We imaged 82 S in mediocre to bad seeing for about an hour before having to close due to clouds. Run 6464 82 S 113 - 124 frames 59 - 140 including ramps Humidity joined the chorus a couple hours later and remained high the rest of the night. ---=== OBSERVING LOG ===--- Afternoon: ---------- Run 6262 dewar 3 frame 20. Looks like strong odd/even effect coming and going. Intervals are longer after frame 24. It is pronounced enough to change the display colors to a lavender or light blue (every other column being blue or pink) in r3 and u3. It seemed to settle down after 40 frames or so. Let's have no more of that please! :). First biases from the spectrographs were out of spec according to SoS. Since the west door was partly open at that time and later biases with the door closed were in spec, it was probably just light leaking in. Spectro focus checked but not changed. Still set for 5 to 6 C. Details in problems section. From Howard regarding cloud camera debugging efforts during the afternoon: Wendell and I (Howard) spent some more time this afternoon working on the cloudCam problem. We disconnected the camera's output from the paralan and attached a video generator to the input of the paralan. We save the images on host2 in the observer account in the directory irsc54026. When these video-generator images were examined with saoDisplay, we saw no evidence of the noise bar artifact. In an effort to eliminate yet other possible causes of the noise bar, we cleaned/lubricated the gain and skyLevel pots in the camera's control box. Unfortunately, the noise bar remained. Tomorrow, French wants to attach the control box from Kurt's camera to our camera for yet another test since the problem seems to be in the control box or the camera. The camera's power supply was tested earlier by Wendell and was found to have no problems. Night: ------ 23:30Z Doors Open, Louvers Open, Fans On 01:25Z Doors Closed for imager bias 01:50Z Enclosure Open 01:34Z Run 6464 82 S 113 - 124 frames 59 - 140 incl ramps Focus happy by frame 16. Seeing not very good at around 2 arcseconds. Skippy happy once we were in the region of catalog coverage, so pointing is good from the start. 01:50Z Twilight frame 35 lambda 109.5 A small miscalculation had us at twilight about 3 degrees earlier than we wanted, but stopping the scan, moving, and starting another scan would probably have taken at least that much time anyway so we let the run continue on to the desired ramp start. 02:06Z Start of ramp lambda 113 frame 59 02:14Z Start of science lambda 115, frame 72 02:53Z Waves of clouds moving through lambda 125, frame 140 Seeing also getting worse, now ranging between 2 and 3 arcseconds Data after frame 140 (lambda 124) probably not useful. 03:21Z Closing due to thick mid level clouds. 05:55Z Doors Closed, Louvers Closed, Fans Off. Sprinkles in addition to humidity nearly over the line. 10:30Z We give up. 10:33Z endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 6462 22:07Z 00:22Z 100 O 67.13 101.19 241 ignore 6463 00:26Z 00:46Z 100 O 102.19 107.17 47 bias 6464 01:33Z 03:22Z 82 S 105.29 132.57 196 science ---=== IMAGING RUN DETAILS ===--- ---=== SKIPPY RESULTS ===--- Run Frame nFrames stars muErr muRms nuErr nuRms rot az el --------------------------------------------------------------------------- 6464 17 4 15 -11.800 2.220 -8.600 1.809 0.06926 204 55 6464 68 4 62 -0.000 0.134 -5.800 0.153 -0.00449 204 55 6464 120 4 122 0.300 0.142 -5.500 0.160 -0.00439 204 55 6464 171 4 0 0.000 0.000 0.000 0.000 -0.00000 0 0 ---=== 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 41045, plate -9999 ------- 22:11 41045 0.0 bias bad 22:20 41046 0.0 bias bad ----- sequence 41047, plate 2422 ------- 22:41 41047 0.0 bias 22:44 41048 0.0 bias 22:48 41049 10.0 flat 22:50 41050 2.0 arc 22:54 41051 3.0 arc 22:56 41052 3.0 arc ----- sequence 41053, plate -9999 ------- 05:50 41053 0.0 bias ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 01:44Z imager -24.02 0.0000 54.72 0.0000 69.79 0.0000 1.000000 ---=== 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 ------------------------------------------------------------------------------ 01:44Z imager 1.00000 0 -204 -105 -24 54.7 6.9 18 263 23-i' 2.12 02:40Z imager 1.00000 0 -222 -123 -24 54.7 6.8 19 267 23-i' 1.73 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 21:08Z 51 36 19 221 (SW) 476 - Clear 21:40Z 50 35 19 220 (SW) 465 - Mostly Clear 22:10Z 49 35 17 235 (SW) 495 - Mostly Clear 22:40Z 50 32 25 224 (SW) 507 - Clear 23:12Z 48 32 24 249 (WSW) 531 - Clear 23:44Z 47 33 21 221 (SW) 520 - Clear 00:16Z 45 29 16 253 (WSW) 519 - Clear 00:49Z 44 29 26 237 (WSW) 645 - Mostly Clear 01:19Z 45 27 26 251 (WSW) 671 - Clear 01:50Z 44 28 19 256 (WSW) 719 - Mostly Clear 02:21Z 44 28 20 274 (W) 731 - Mostly Clear 02:51Z 44 28 22 268 (W) 823 - Partly Cloudy 03:21Z 44 29 17 262 (W) 805 - Cloudy 03:54Z 44 30 22 250 (WSW) 742 - Cloudy 04:26Z 43 32 18 260 (W) 804 - Cloudy 05:00Z 42 34 24 245 (WSW) 882 - Cloudy 05:30Z 42 35 23 259 (W) 962 - Cloudy 06:02Z 42 36 22 264 (W) 1097 - Sprinkles 06:34Z 41 36 17 267 (W) 972 - Sprinkles 07:08Z 41 36 18 266 (W) 980 - Mostly Cloudy 07:39Z 40 36 25 259 (W) 971 - Cloudy 08:09Z 40 36 18 250 (WSW) 1040 - Cloudy 08:39Z 39 37 19 261 (W) 996 - Partly Cloudy 09:09Z 39 37 17 273 (W) 1090 - Cloudy 09:39Z 39 38 18 265 (W) 1063 - Cloudy 10:09Z 39 38 14 263 (W) 1096 - ---=== TELESCOPE STATUS ===--- 23:30Z Doors Open, Louvers Open, Fans On 01:25Z Doors Closed for imager bias 01:50Z Enclosure Open 03:30Z Enclsosure Closed, Doors Open, Fans On. 05:55Z Doors Closed, Louvers Closed, Fans Off. Stowed at 30 deg alt, cartridge 9 installed. Spectro auto-fill connected. Spectro dewar 10:15Z Dewar wt 269 lb Imager dewar 10:15Z Dewar wt 178 lb No interlocks bypassed. ---=== SOFTWARE USED ===--- IOP/SOP: v4_26_0a Watcher: v2_34_0 MCP: v6_3_2 TPM: tpm_v3_3_0 AstroDa: v15_13 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v2_20 SoS: v5_1_4 hoggPT: v1_6_9 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 24.6800 24.6750 Axial B 26.2540 26.2540 Axial C 25.3320 25.3490 Trans D 13.5630 13.5760 Lateral E 9.9695 9.9568 Lateral F 11.5443 11.5316 GALILS Commanded: 4600. -2000. 2650. -9300. -9800. -9800. Actual: 4600. -2000. 2650. -9300. -9800. -9800. SETMIR VALUES PriDesOrient: 0.00 0.00 0.00 0.00 0.00 PriOrient: 0.00 0.00 0.00 0.00 0.00 SECONDARY: ---------- Focus: 0.00 Air Temp.: 8.8 Alt.: 30.350219 MIGS TONIGHT NOMINAL Axial A 1.5500 1.5550 Axial B 1.1340 1.1290 Axial C 1.1910 1.1910 Trans D -0.0590 -0.0530 GALILS Commanded: 1616046. 1594162. 1542188. -10550. -5800. Actual: 1614050. 1594700. 1543100. -10550. -5800. SETMIR VALUES SecDesOrient: 1257.00 20.00 -10.00 -100.00 176.64 SecOrient: 1257.14 20.40 -10.87 -101.01 176.29 ---=== PROBLEMS IN DETAIL ===--- Spectro Focus Info: ------------------- sp1> caget tpm_TM_PMSSAvg tpm_TM_TelairAvg.VALA tpm_TM_PMSSAvg 7.194 tpm_TM_TelairAvg.VALA 8.915 sp1 9.8 sp2 8.2 Mean offset (pix) Collimator Position sp1 sp2 b1 r1 b2 r2 A B C A B C old .22 -.41 .09 -.32 -12182 -11984 -12679 -8850 -9638 -13049 new " " " " " " " " " " Going by the now available spectrograph temperatures (Woohoo!) sp1 is set for about 6 C, sp2 about 5 C. These are reasonable given expected nighttime temps, so no change.