APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday May 30, 2008 (MJD 54617) ---=== OBSERVING TEAM ===--- Shannon Watters Kaike Pan Audrey Simmons (swing) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- We had clouds during the first half of the night, seeing was about 1.1" in the whole night. We finished two segue faint plates: 2819 and 2933, and obtained s/N^2 of 32.5 on plate 2191. ---=== OBSERVING LOG ===--- Afternoon: ---------- No problems during checkout. Spectro collimation set for ~13C tonight. I adjusted the blue cameras a few degrees as they were just slightly out of spec when the red cameras were in focus (see problem section for details). 01:10Z - Started ventilating with doors and louvers open, fans on. Night: ------ 02:20Z open enclosure. 03:00Z cart 6, plt 2933 (segue faint). FK5 used for guiding stars. 03:23Z pre-calib. 03:30Z started a 1500 sec exposure. 04:55Z mid calib. Plate was done with 11700 s exposure time ------------------------------------- MJD b1 r1 b2 r2 Texp ------------------------------------- 54617 13.9 8.6 17.6 8.7 1500.0 54617 14.3 9.4 18.9 7.8 1501.0 54617 12.5 7.3 14.7 7.2 1500.0 54617 15.0 8.7 17.9 9.3 1501.0 54617 5.8 4.0 6.9 3.9 1501.0 54617 7.4 5.1 8.7 4.9 1500.0 54617 8.2 5.5 10.6 5.7 1500.0 54617 11.2 6.8 13.2 8.1 1200.0 Total: 88.3 55.4 108.5 55.6 11703.0 07:30Z cart 2819 (segue faint). SOGTF. The plate was done with two exposures and signals from previous nights. ------------------------------------- MJD b1 r1 b2 r2 Texp ------------------------------------- 54599 18.5 14.2 18.7 14.2 1800.0 54600 3.8 4.2 3.8 4.1 1500.0 54600 2.3 2.5 2.4 2.2 1038.0 54617 17.6 14.3 17.6 15.4 1500.0 54617 22.3 17.0 23.3 19.6 1802.0 Total: 64.5 52.2 65.8 55.5 7640.0 08:45Z cart 8, plt 2191 (segue faint). FK 5 for guiding stars. Get one 1500 s exposure and two 1200 s exposure. ------------------------------------- MJD b1 r1 b2 r2 Texp ------------------------------------- 54617 15.4 15.8 17.9 16.3 1500.0 54617 9.5 10.6 10.5 12.0 1202.0 54617 7.6 8.6 8.8 10.2 1200.0 Total: 32.5 35.0 37.2 38.5 3902.0 11:00Z endNight rejoiced ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 7533 23:51Z 00:07Z 100 O -44.19 -40.30 40 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 53111, plate -9999 ------- 23:53 53111 0.0 bias ----- sequence 53112, plate 2933 ------- 23:59 53112 10.0 flat 00:01 53113 2.0 arc 00:04 53114 3.0 arc 00:07 53115 2.0 arc 00:17 53116 3.0 arc 00:19 53117 3.0 arc 00:43 53118 3.0 arc 00:45 53119 3.0 arc ----- sequence 53120, plate -9999 ------- 01:21 53120 0.0 bias ----- sequence 53121, plate -9999 ------- 02:25 53121 0.0 bias ----- sequence 53123, plate 2933 ------- 02:55 53123 0.0 bias 03:25 53124 10.0 flat 03:27 53125 2.0 arc 03:56 53126 1500.0 target 04:24 53127 1501.0 target 04:52 53128 1500.0 target 04:55 53129 10.0 flat 04:58 53130 2.0 arc 05:28 53131 1501.0 target 05:56 53132 1501.0 target 06:26 53133 1500.0 target 06:54 53134 1500.0 target 07:17 53135 1200.0 target 07:20 53136 10.0 flat 07:22 53137 2.0 arc ----- sequence 53138, plate 2819 ------- 07:36 53138 10.0 flat 07:38 53139 2.0 arc 08:08 53140 1500.0 target 08:41 53141 1802.0 target 08:44 53142 10.0 flat 08:46 53143 2.0 arc ----- sequence 53144, plate 2191 ------- 09:16 53144 10.0 flat 09:19 53145 2.0 arc 09:48 53146 1500.0 target 10:11 53147 1202.0 target 10:34 53148 1200.0 target 10:36 53149 10.0 flat 10:39 53150 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 03:32Z 6 2933 43.72 0.0004 58.69 0.0062 215.91 0.0126 1.000200 07:41Z 4 2819 123.22 0.0049 71.42 0.0076 -69.51 0.0251 1.000270 09:30Z 8 2191 278.51 -0.0017 59.91 0.0024 114.44 0.0063 1.000140 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 01:10Z 6 0 1.00000 0 1257 0 121 30.0 19.7 12 259 02:36Z 6 0 1.00000 0 1257 0 121 30.0 17.0 14 264 03:31Z 6 2933 1.00020 -1975 -629 -150 44 58.6 16.8 16 265 -- 1.2 07:41Z 4 2819 1.00027 -2666 -1228 -150 123 71.6 16.0 7 268 -- 1.1 09:30Z 8 2191 1.00014 -1383 -117 -125 278 59.9 15.5 14 292 -- 1.1 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:16Z 72 8 16 243 (WSW) 833 - 23:50Z 70 8 16 251 (WSW) 930 - 00:20Z 69 8 12 263 (W) 938 - 00:50Z 68 9 20 244 (WSW) 921 - 01:22Z 67 9 15 266 (W) 996 - 01:54Z 64 10 17 246 (WSW) 1099 - 02:26Z 61 11 11 259 (W) 1132 - 02:57Z 61 8 17 241 (WSW) 1082 - mostly clear 03:28Z 62 8 14 262 (W) 1221 - clear 04:01Z 63 7 16 271 (W) 997 - clear 04:33Z 63 10 12 256 (WSW) 1080 - partly cloudy 05:03Z 62 10 10 266 (W) 1059 - 05:34Z 61 9 6 266 (W) 1115 - 06:06Z 61 6 11 264 (W) 1074 - 06:36Z 61 7 9 263 (W) 1182 - 07:07Z 61 8 10 268 (W) 1244 - 07:38Z 61 8 7 264 (W) 1181 - partly cloudy 08:08Z 61 4 12 269 (W) 1087 - clear 08:39Z 60 7 11 264 (W) 1125 - 09:10Z 60 7 13 287 (WNW) 1138 - 09:40Z 60 8 15 295 (WNW) 1209 - 10:11Z 59 7 14 308 (NW) 1192 - clear 10:44Z 60 6 15 307 (NW) 1286 - ---=== TELESCOPE STATUS ===--- 01:08Z - Began ventilation. Doors and louvers opened, fans on. 02:20Z - Opened enclosure. 10:50Z - Enclosure is on, doors and louvers are closed, and fans are off. No interlocks bypassed. Status at: 11.05Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge Counterweights at: 250 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 137 lbs, 21 psi Imager 112 lbs, 17 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_40 SoS: v5_1_8 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.0240 0.0200 Axial B -0.0160 0.0000 Axial C -0.0210 -0.0230 Trans D 0.0040 0.0120 Lateral E 10.0711 10.0584 Lateral F 11.6459 11.6205 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.: 19.9 Alt.: 31.584691 MIGS TONIGHT NOMINAL Axial A -0.0380 -0.0440 Axial B -0.0490 -0.0570 Axial C -0.0550 -0.0670 Trans D -0.0210 -0.0110 GALILS Commanded: 1627454. 1653148. 1470786. -5900. -7800. Actual: 1627496. 1653168. 1470885. -5887. -7780. SETMIR VALUES SecDesOrient: 1257.00 60.00 -4.00 -20.00 118.90 SecOrient: 1256.96 60.02 -4.00 -19.91 119.27 ---=== PROBLEMS IN DETAIL ===--- Filesystem Size Used Avail Use% Mounted on /dev/sda3 142G 123G 12G 92% / /dev/sda1 99M 30M 64M 33% /boot /dev/sdb1 917G 635G 236G 73% /data sdssfiles1:/data1/data 1.5T 605G 788G 44% /files --------------------------------------------------------------- Spectro Collimation with Cartridge 6 Before: sp1> 4212 4404 4501 T= 15.5C sp2> 7055 6407 6590 T= 13.3C Expected night T= 13C Spectro collimation set for 13C Difference of 2.5 degrees (colder) = -2500 steps (sp1) Difference of 0.3 degrees (colder) = -300 steps (sp2) IDL> collimate, 53114 Camera Steps/Degrees Focus Mean Offset r1 1711 OUT -0.19 r2 238 IN -0.03 b1 -7.4 OUT 0.21 b2 5.5 OUT -0.15 Focus the red cameras for the current temperature: sp1> mechPiston 1711 sp2> mechPiston 238 sp1> 5923 6117 6212 sp2> 7292 6649 6828 IDL> collimate, 53116 Camera Steps/Degrees Focus Mean Offset r1 483 IN -0.05 r2 -18 IN 0.00 b1 -3.1 IN 0.09 b2 5.9 OUT -0.16 After adjusting blue cameras: IDL> collimate, 53118 Camera Steps/Degrees Focus Mean Offset r1 554 IN -0.06 r2 -270 IN 0.03 b1 -4.2 IN 0.12 b2 12.5 OUT -0.35 Adjusted the blue cameras the other direction. They should now be in spec. Now, set the red camera collimation to a nighttime temperature of 13C. sp1> mechPiston -1946 sp2> mechPiston -570 sp1> 3976 4162 4267 sp2> 6721 6078 6257 sop> caget tpm_TM_PMSSAvg tpm_TM_TelairAvg.VALA tpm_TM_PMSSAvg = 14.2171 tpm_TM_TelairAvg.VALA = 13.9775 ---------------------------------------------------------------