APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday January 2, 2008 (MJD 54468) ---=== OBSERVING TEAM ===--- Viktor Malanushenko (days) Dan Oravetz (observer) Dmitry Bizyaev (observer) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- The first few hours were lost to clouds. We had poor seeing all night. The dust counts were high most of the night and we figure we just about hit the closure limit (a little > 20,000 dust-hours) regarding dust and humidity (slightly greater than 50% most of the night). We kindly request that the optics be cleaned. Acquired good signal on cartridge 2, plate 1631. Finished cartridge 3, plate 1788. Finished cartridge 8, plate 2852. Acquired good signal on cartridge 4, plate 2862. ---=== OBSERVING LOG ===--- Afternoon: ---------- All equipment are checked and work properly. Spectro collimation set for -3C. Ventilation is started at 23:20Z. Cartridge 6 is mounted. Night: ------ We had clouds for the first few hours. The 1.0um dust count was also high (between 2000 - 2900 counts) and the humidity was ~50%. 03:50Z - The clouds cleared out for the most part, so we opened. The dust count was still ~2300 counts and the humidity ~50%. 04:00Z - Doors and louvers opened, fans on. Enclosure off. Cartridge 2, plate 1631, photoz79 ********************************* 04:28Z - gotoField. Needed an fk5 to acquire the field. The offset was about -7 in A and +7 in D. 04:43Z - Pre-Calibs. 04:49Z - 20-minute exposure. 05:12Z - 20-minute exposure. 05:31Z - Scattered clouds moved in and passed over the field during the end of the second exposure. Efficiency dropped, but was still ~40%. 05:35Z - 20-minute exposure. 05:58Z - 20-minute exposure. Efficiency was around 15% - 20% for most of the exposure. (S/N)^2 for this exposure < 2.0 in all four cameras. 06:22Z - Post-Calibs. Seeing: 1.9" - 2.4" fwhm. (S/N)^2 = 37.1 in r2 and just 28.5 in r1. Since there are very few plates that cover the time gap of this plate and since 40 is the target (S/N)^2, we will leave it for the next person to take one or two good exposures on this plate and they can declare it done. Cartridge 3, plate 1788, chunk93 ******************************** 06:33Z - gotoField. Guide stars found on gotoField. 06:39Z - Pre-Calibs. 06:46Z - 25-minute exposure. There were still plenty of broken clouds at the start of this exposure. 07:14Z - 25-minute exposure. 07:43Z - Post-Calibs. Seeing: 2.4" - 2.6" fwhm. This plate is DONE. Cartridge 8, plate 2852, segue169 ********************************* 07:52Z - gotoField. Guide stars found on gotoField. 08:01Z - Pre-Calibs. 08:09Z - 20-minute exposure. 08:32Z - 20-minute exposure. 08:55Z - 20-minute exposure. 09:19Z - Post-Calibs. Seeing: 1.5" - 2.2" fwhm. This plate is DONE. Cartridge 4, plate 2862, segue169 ********************************* 09:29Z - gotoField. Guide stars found on gotoField. 09:34Z - Pre-Calibs. 09:41Z - 20-minute exposure. 10:04Z - 20-minute exposure. The edge of a system coming from the west started to move in. The efficiency began jumping around between 30% - 60% for the last part of this exposure. 10:26Z - 25-minute exposure. Again, efficiency ranged from 15%- 50% and the clouds grew thicker. 10:55Z - 1700-second exposure. 11:27Z - Post-Calibs. Seeing: 2.0" - 2.6" fwhm. The last exposure on cartridge 4 was no good because of clouds moving in, poor efficiency, and bad seeing, but we still decided to mount cartridge 6 and hope that the conditions would improve. Cartridge 6, plate 2872, seguefaint170 ************************************** 11:46Z - gotoField. Needed an fk5 to acquire the field. When we went back to the field we only had a few guide stars and the efficiency was around 20%. 11:55Z - Pre-Calibs. 12:07Z - 20-minute exposure. This exposure had (S/N)^2 no higher than 1.1 in the four cameras. 12:44Z - Enclosure on, doors and louvers closed, fans off. 12:47Z - endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 7267 21:29Z 21:54Z 100 O 133.23 139.70 56 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 48557, plate -9999 ------- 21:19 48557 0.0 bias ----- sequence 48558, plate 2872 ------- 21:47 48558 10.0 flat 21:50 48559 2.0 arc 21:59 48560 3.0 arc 22:01 48561 3.0 arc 22:56 48562 2.0 arc 22:59 48563 3.0 arc ----- sequence 48564, plate -9999 ------- 23:19 48564 0.0 bias 23:49 48565 0.0 bias ----- sequence 48566, plate 1631 ------- 30.4 28.5 29.5 37.1 04:45 48566 10.0 flat 04:48 48567 2.0 arc 05:11 48568 1200.0 target 3.2 3.9 4.2 4.9 05:34 48569 1201.0 target 4.1 4.3 3.9 5.2 05:58 48570 1200.0 target 4.4 3.3 2.8 3.6 06:21 48571 1203.0 target (S/N)^2 too low 06:25 48572 10.0 flat 06:27 48573 2.0 arc ----- sequence 48574, plate 1788 ------- 26.9 15.6 22.6 25.4 06:42 48574 10.0 flat 06:44 48575 2.0 arc 07:13 48576 1501.0 target 5.2 2.8 4.1 3.9 07:41 48577 1502.0 target 6.4 3.7 5.3 5.7 07:45 48578 10.0 flat 07:48 48579 2.0 arc ----- sequence 48580, plate 2852 ------- 16.8 6.7 20.5 7.3 08:03 48580 10.0 flat 08:06 48581 2.0 arc 08:32 48582 1200.0 target 3.5 2.1 5.0 1.9 08:55 48583 1201.0 target 5.1 1.8 6.0 2.1 09:17 48584 1201.0 target 5.7 1.6 5.7 2.0 09:21 48585 10.0 flat 09:24 48586 2.0 arc ----- sequence 48587, plate 2862 ------- 7.3 3.1 25.2 5.7 09:36 48587 10.0 flat 09:39 48588 2.0 arc 10:03 48589 1200.0 target 2.8 1.6 11.6 2.5 10:26 48590 1201.0 target 2.1 0.9 6.0 1.5 10:54 48591 1500.0 target 2.4 0.6 7.6 1.3 11:25 48592 1700.0 target (S/N)^2 too low 11:29 48593 10.0 flat 11:32 48594 2.0 arc ----- sequence 48595, plate 2872 ------- 11:58 48595 10.0 flat 12:00 48596 2.0 arc 12:30 48597 1200.0 target (S/N)^2 too low ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 04:53Z 2 1631 -21.88 0.0034 48.42 0.0018 161.63 0.0109 1.000140 06:48Z 3 1788 152.13 0.0048 47.28 0.0021 -65.47 0.0093 1.000270 08:11Z 8 2852 47.46 0.0048 46.33 0.0010 218.29 0.0304 0.999950 09:42Z 4 2862 48.85 0.0049 45.55 0.0013 219.27 0.0333 0.999920 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 04:53Z 2 1631 1.00014 -1383 192 150 -22 48.5 -0.7 10 144 ---- 2.0" 06:48Z 3 1788 1.00027 -2666 -867 150 152 47.3 -0.7 10 177 ---- 2.4" 08:11Z 8 2852 0.99995 494 1752 150 48 46.3 -1.1 7 172 ---- 2.1" 09:42Z 4 2862 0.99992 790 2000 150 49 45.5 0.1 11 227 ---- 2.0" ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 20:32Z 32 3 9 175 (S) 603 - clouds 21:05Z 31 2 18 148 (SSE) 673 - clouds 21:35Z 31 6 11 141 (SE) 844 - clouds 22:05Z 31 12 21 144 (SE) 1311 - clouds 22:35Z 32 12 23 163 (SSE) 1187 - clouds 23:05Z 32 10 18 170 (S) 1147 - clouds 23:36Z 31 6 19 145 (SE) 687 - clouds 00:17Z 29 11 18 166 (SSE) 1131 - clouds 00:50Z 27 12 14 162 (SSE) 1397 - clouds 01:22Z 26 12 12 151 (SSE) 1454 - clouds 01:54Z 27 14 13 122 (ESE) 2195 - clouds 02:26Z 27 16 17 145 (SE) 2507 - clouds 02:58Z 26 14 6 145 (SE) 2181 - clouds 03:30Z 29 16 15 153 (SSE) 2720 - clouds 04:02Z 25 13 5 170 (S) 2065 - partly cloudy 04:34Z 29 14 10 175 (S) 2264 - mostly clear 05:04Z 31 15 9 173 (S) 2626 - mostly clear 05:34Z 30 15 8 165 (SSE) 2626 - partly cloudy 06:05Z 30 15 10 178 (S) 2407 - mostly cloudy 06:35Z 31 15 8 174 (S) 2297 - mostly cloudy 07:05Z 29 14 11 158 (SSE) 2461 - mostly clear 07:35Z 30 15 11 179 (S) 2422 - clear 08:07Z 30 15 11 179 (S) 2737 - clear 08:37Z 31 15 9 175 (S) 3220 - clear 09:07Z 31 15 4 222 (SW) 3612 - clear 09:40Z 33 15 1 175 (S) 2834 - clear 10:10Z 33 14 13 235 (SW) 2443 - clear 10:40Z 36 13 14 256 (WSW) 1304 - partly cloudy 11:10Z 36 12 9 278 (W) 1418 - clouds 11:43Z 36 12 8 269 (W) 1639 - clouds 12:17Z 36 12 9 270 (W) 1145 - clouds 12:49Z 37 13 11 267 (W) 1250 - clouds ---=== TELESCOPE STATUS ===--- 04:00Z - Doors and louvers opened, fans on. Enclosure off. 12:44Z - Enclosure on, doors and louvers closed, fans off. No interlocks bypassed. Status at: 12:47Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge 6 Counterweights at: 260 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 232.60 lbs, 21.39 psi Imager 142.10 lbs, 19.46 psi ---=== SOFTWARE USED ===--- IOP/SOP: v4_38_0 Watcher: v2_36_0 MCP: v6_4_0 TPM: tpm_v3_5_0 AstroDa: v15_13_1 TCC: TCC 2.7.2.1 August 6 2004 sdssProcedures: v2_36 SoS: v5_1_8 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -5.2160 -5.2160 Axial B -0.2142 -0.2142 Axial C -0.0015 -0.0016 Trans D 11.8460 11.8540 Lateral E 10.0711 10.0584 Lateral F 11.6586 11.6586 GALILS Commanded: 4600. -2000. 2650. -12450. -6500. -6550. Actual: 4600. -2000. 2650. -12439. -6477. -6546. SETMIR VALUES PriDesOrient: 0.00 0.00 0.00 100.00 -200.00 PriOrient: 0.00 0.00 0.00 99.59 -200.69 SECONDARY: ---------- Focus: 0.00 Air Temp.: 0.3 Alt.: 33.425792 MIGS TONIGHT NOMINAL Axial A 0.8026 0.8025 Axial B 0.6121 0.6120 Axial C 0.5474 0.5474 Trans D 0.6006 0.6008 GALILS Commanded: 1627718. 1652909. 1470723. -5900. -7800. Actual: 1627496. 1653168. 1470885. -5887. -7780. SETMIR VALUES SecDesOrient: 1257.00 60.00 -4.00 -20.00 118.90 SecOrient: 1256.95 60.02 -4.15 -20.02 119.27 ---=== PROBLEMS IN DETAIL ===--- Filename 02% 05% 10% 50% 90% 95% 98% ------------------- ------ ------ ------ ------ ------ ------ ------ sdR-b1-00048557.fit -5.4 -4.1 -2.1 2.3 7.4 8.9 10.6 sdR-b2-00048557.fit -8.4 -5.9 -4.5 1.5 7.6 9.3 11.3 sdR-r1-00048557.fit -6.5 -4.8 -3.2 2.2 7.7 9.2 11.2 sdR-r2-00048557.fit -7.0 -5.7 -3.8 1.4 7.7 9.8 11.9 ------------------- IDL 5.5a> collimate, 48560 Reading /data/spectro/54468/sdR-b1-00048560.fit Reading /data/spectro/54468/sdR-b1-00048561.fit COLLIMATE: Min offset = -0.65 pix COLLIMATE: Max offset = 1.35 pix COLLIMATE: RMS across CCD = 0.54 pix COLLIMATE: Mean offset = 0.37 pix COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of -13.2 degrees for spectro-1 COLLIMATE: (if red is already in focus) Log file = Collimate-54468-b1-00048560.log PostScript file = Collimate-54468-b1-00048560.ps Reading /data/spectro/54468/sdR-b2-00048560.fit Reading /data/spectro/54468/sdR-b2-00048561.fit COLLIMATE: Min offset = -0.38 pix COLLIMATE: Max offset = 0.16 pix COLLIMATE: RMS across CCD = 0.11 pix COLLIMATE: Mean offset = -0.04 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 1.3 degrees for spectro-2 COLLIMATE: (if red is already in focus) Log file = Collimate-54468-b2-00048560.log PostScript file = Collimate-54468-b2-00048560.ps Reading /data/spectro/54468/sdR-r1-00048560.fit Reading /data/spectro/54468/sdR-r1-00048561.fit COLLIMATE: Min offset = -0.66 pix COLLIMATE: Max offset = 0.36 pix COLLIMATE: RMS across CCD = 0.26 pix COLLIMATE: Mean offset = -0.16 pix COLLIMATE: Camera r1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 1476 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston 1476" Log file = Collimate-54468-r1-00048560.log PostScript file = Collimate-54468-r1-00048560.ps Reading /data/spectro/54468/sdR-r2-00048560.fit Reading /data/spectro/54468/sdR-r2-00048561.fit COLLIMATE: Min offset = -0.54 pix COLLIMATE: Max offset = 0.14 pix COLLIMATE: RMS across CCD = 0.16 pix COLLIMATE: Mean offset = -0.10 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 891 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston 891" Log file = Collimate-54468-r2-00048560.log PostScript file = Collimate-54468-r2-00048560.ps --------------------- sp1> caget tpm_TM_PMSSAvg tpm_TM_TelairAvg.VALA tpm_TM_PMSSAvg 0.0914286 tpm_TM_TelairAvg.VALA 0.7925 --------------------- Initial MechSend s: sp1> -11625,-11602.-12712; sp2> -3358,-4346,-4496 T current +0.8C, expected T=-3C Collimate results sp1> mechPiston +1476; sp2> +891 Movements sp1> did not move, sp2> did not move New MechSend s: sp1> did not cange sp2> did not cange --------------------- the blue camera b1 ring moved on -6 degree, then has been obtained new collimation (arc48562,48563): IDL 5.5a> collimate, 48562 Reading /data/spectro/54468/sdR-b1-00048562.fit Reading /data/spectro/54468/sdR-b1-00048563.fit COLLIMATE: Min offset = -0.87 pix COLLIMATE: Max offset = 1.21 pix COLLIMATE: RMS across CCD = 0.58 pix COLLIMATE: Mean offset = 0.21 pix COLLIMATE: Camera b1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of -7.4 degrees for spectro-1 COLLIMATE: (if red is already in focus) Log file = Collimate-54468-b1-00048562.log PostScript file = Collimate-54468-b1-00048562.ps Reading /data/spectro/54468/sdR-b2-00048562.fit Reading /data/spectro/54468/sdR-b2-00048563.fit COLLIMATE: Min offset = -0.32 pix COLLIMATE: Max offset = 0.23 pix COLLIMATE: RMS across CCD = 0.12 pix COLLIMATE: Mean offset = 0.02 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of -0.8 degrees for spectro-2 COLLIMATE: (if red is already in focus) Log file = Collimate-54468-b2-00048562.log PostScript file = Collimate-54468-b2-00048562.ps Reading /data/spectro/54468/sdR-r1-00048562.fit Reading /data/spectro/54468/sdR-r1-00048563.fit COLLIMATE: Min offset = -0.76 pix COLLIMATE: Max offset = 0.31 pix COLLIMATE: RMS across CCD = 0.27 pix COLLIMATE: Mean offset = -0.22 pix COLLIMATE: Camera r1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 1981 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston 1981" Log file = Collimate-54468-r1-00048562.log PostScript file = Collimate-54468-r1-00048562.ps Reading /data/spectro/54468/sdR-r2-00048562.fit Reading /data/spectro/54468/sdR-r2-00048563.fit COLLIMATE: Min offset = -0.61 pix COLLIMATE: Max offset = 0.10 pix COLLIMATE: RMS across CCD = 0.17 pix COLLIMATE: Mean offset = -0.14 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 1324 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston 1324" Log file = Collimate-54468-r2-00048562.log PostScript file = Collimate-54468-r2-00048562.ps CollimT current 5C, expected T=1C Collimate results sp1> mechPiston +1981; sp2> +1324 Movements sp1> did not move, sp2> did not move New MechSend s: sp1> did not cange sp2> did not cange ---------------------