APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Friday April 25, 2008 (MJD 54582) ---=== OBSERVING TEAM ===--- Elena Malanushenko Dan Oravetz ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- Finished: cartridge 3, 2924 cartridge 2, 2526 Obtained signal on: cartridge 5, 2861 cartridge 1, 2520 We accumulated 40,000 dust-hours tonight, but acquired good signal in otherwise clear and photometric skies. Please check the mirror. ---=== OBSERVING LOG ===--- Afternoon: --------- All systems checked and working properly. Collimation is set for ~8C. We did not make any adjustments. sdsshost2.apo.nmsu.edu % df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 142G 114G 21G 85% / /dev/sda1 99M 30M 64M 33% /boot /dev/sdb1 917G 608G 263G 70% /data sdssfiles1:/data1/data 1.5T 546G 847G 40% /files Dust counts were ~7k in the evening, so we did not begin ventilation. Night: ----- 01:46Z - Sunset. 02:00Z - Doors and louvers opened, fans on, enclosure off. Cartridge 5, 2861, segue169 *************************** 02:37Z - gotoField. Used fk5 to acquire the field. 02:48Z - Pre-Calibs. 02:55Z - Science. 1200s. (S/N)^2 = 2.7 1.4 6.8 2.7 03:18Z - Science. 1200s. 3.9 1.5 10.6 2.9 03:41Z - Science. 1200s. 3.9 1.8 9.8 2.9 04:04Z - Post-Calibs. Cartridge 3, 2924, seguefaint180 ******************************** 04:14Z - gotoField. Guide stars found on gotoField. 04:23Z - Pre-Calibs. 04:31Z - Science. 1200s. (S/N)^2 = 9.6 6.5 10.4 8.8 04:54Z - Science. 1200s. 9.6 6.7 10.5 8.7 05:17Z - Science. 1200s. 9.8 6.4 10.4 8.7 05:40Z - Mid-Calibs. 05:46Z - Science. 1200s. 9.5 6.3 10.1 8.6 06:10Z - Science. 1200s. 10.6 6.8 11.4 9.9 06:33Z - Science. 1500s. 12.6 7.9 14.2 10.6 07:01Z - Mid-Calibs. 07:07Z - Science. 1800s. 10.8 7.5 12.2 10.3 The r1 (S/N)^2 value that we calculated for the last (1800s) exposure based on the value from the 1500s exposure was 9.5, which would have provided enough signal to declare this plate done. The sky was clear and photometric and the moon had just begun rising, so conditions were still excellent and we decided to switch to a high priority chunk plate after the last exposure and prior to SoS reported the results. SoS reported 7.5 for the r1 value and this resulted in a summed (S/N)^2 = 48.1 in r1. We decided to declare this plate done since it would be inefficient to observe this plate tomorrow to obtain the 1.9 (S/N)^2 required to formally meet the completion criteria with 50 in all cameras. Cartridge 2, 2526, chunk145 *************************** 07:46Z - gotoField. We had a rotator abort during gotoField which seemed to be due to a communication hiccup. We issued `tccClose' and `startDa -tcc' commands and tried going to field again, but the rotator did not move. We manually issued a `track' command near to the reported az, alt, rot coordinates and all three axes slewed. We tried `gotoField' again and this time everything was happy and guide stars were found. 08:00Z - Pre-Calibs. 08:07Z - Science. 1200s. (S/N)^2 = 3.3 3.0 3.7 3.5 08:30Z - Science. 1200s. 3.6 3.2 4.0 3.8 08:53Z - Science. 1200s. 3.4 3.3 4.1 3.8 09:16Z - Science. 1200s. 3.4 3.3 4.0 4.1 09:39Z - Science. 1200s. 3.2 3.4 3.8 3.7 This plate is DONE. Cartridge 1, 2520, chunk145 *************************** 10:08Z - gotoField. Used fk5 to acquire the field. 10:20Z - Science. 1200s. (S/N)^2 = 2.5 2.5 3.4 5.2 10:43Z - Science. 1200s. 2.3 2.4 2.9 4.7 11:06Z - Pre-Calibs. 11:26Z - Enclsoure on, doors and louvers closed, fans off. 11:40Z - endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 7462 23:54Z 00:10Z 100 O -77.93 -74.00 39 ignore 7463 00:35Z 00:43Z 100 O -67.74 -65.74 27 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 52262, plate -9999 ------- 23:55 52262 0.0 bias 00:10 52263 0.0 bias ----- sequence 52264, plate 2861 ------- 00:17 52264 10.0 flat 00:19 52265 2.0 arc 00:23 52266 3.0 arc 00:26 52267 3.0 arc 02:51 52268 10.0 flat 02:54 52269 2.0 arc 03:17 52270 1201.0 target 03:40 52271 1200.0 target 04:03 52272 1200.0 target 04:06 52273 10.0 flat 04:09 52274 2.0 arc ----- sequence 52275, plate 2924 ------- 04:26 52275 10.0 flat 04:28 52276 2.0 arc 04:53 52277 1201.0 target 05:16 52278 1200.0 target 05:39 52279 1200.0 target 05:43 52280 10.0 flat 05:45 52281 2.0 arc 06:09 52282 1200.0 target 06:32 52283 1201.0 target 07:00 52284 1503.0 target 07:04 52285 10.0 flat 07:06 52286 2.0 arc 07:40 52287 1803.0 target ----- sequence 52288, plate 2526 ------- 08:03 52288 10.0 flat 08:06 52289 2.0 arc 08:29 52290 1202.0 target 08:52 52291 1200.0 target 09:15 52292 1200.0 target 09:38 52293 1200.0 target 10:02 52294 1200.0 target ----- sequence 52295, plate 2520 ------- 10:42 52295 1200.0 target 11:05 52296 1200.0 target 11:08 52297 10.0 flat 11:11 52298 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 02:58Z 5 2861 27.63 -0.0008 45.80 0.0011 203.14 0.0145 0.999930 04:35Z 3 2924 53.64 -0.0005 69.90 0.0046 225.96 0.0293 1.000310 10:53Z 1 2520 -62.87 -0.0013 51.75 0.0019 130.28 -0.0239 1.000030 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 02:58Z 5 2861 0.99993 691 1747 -20 28 45.8 9.0 10 4 ---- 1.7" 04:35Z 3 2924 1.00031 -3061 -1427 -25 54 69.9 8.1 10 318 ---- 1.3" 10:52Z 1 2520 1.00003 -296 880 -50 -63 51.8 6.9 7 262 ---- 1.1" ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:45Z 50 2 0 192 (SSW) 7448 - clear 00:19Z 48 1 8 67 (ENE) 6792 - clear 00:49Z 48 1 14 29 (NNE) 6679 - clear 01:19Z 48 0 15 19 (NNE) 6855 - clear 01:50Z 46 0 16 34 (NE) 6583 - clear 02:20Z 47 0 16 23 (NNE) 5749 - clear 02:50Z 48 1 8 12 (NNE) 4808 - clear 03:22Z 47 1 5 22 (NNE) 4483 - clear 03:53Z 47 0 6 335 (NNW) 4577 - clear 04:24Z 46 0 7 322 (NW) 4570 - clear 04:55Z 47 1 9 305 (NW) 3922 - clear 05:26Z 46 0 7 271 (W) 3984 - clear 05:56Z 46 1 9 285 (WNW) 4040 - clear 06:27Z 46 1 6 263 (W) 4008 - clear 06:59Z 46 1 10 264 (W) 4240 - clear 07:31Z 46 1 12 277 (W) 4331 - clear 08:03Z 46 1 9 237 (WSW) 4234 - clear 08:35Z 45 1 7 262 (W) 4208 - clear 09:05Z 45 1 6 263 (W) 4123 - clear 09:36Z 45 0 7 266 (W) 4058 - clear 10:07Z 45 0 5 264 (W) 4249 - clear 10:38Z 44 0 5 259 (W) 4175 - clear 11:08Z 44 0 7 264 (W) 4075 - clear ---=== TELESCOPE STATUS ===--- 02:00Z - Doors and louvers opened, fans on, enclosure off. 11:26Z - Enclosure on, doors and louvers closed, fans off. No interlocks bypassed. Status at: 11:28Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge 5 Counterweights at: 257 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 131.60 lbs, 14.74 psi Imager 120.40 lbs, 19.58 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 0.0210 0.0200 Axial B -0.0190 0.0000 Axial C -0.0240 -0.0230 Trans D -0.0040 0.0120 Lateral E 10.0838 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.: 8.9 Alt.: 29.985246 MIGS TONIGHT NOMINAL Axial A -0.0400 -0.0440 Axial B -0.0510 -0.0570 Axial C -0.0540 -0.0670 Trans D -0.0200 -0.0110 GALILS Commanded: 1627485. 1653173. 1470862. -5900. -7800. Actual: 1627496. 1653168. 1470885. -5887. -7780. SETMIR VALUES SecDesOrient: 1257.00 60.00 -4.00 -20.00 118.90 SecOrient: 1256.99 60.01 -4.00 -19.91 119.28 ---=== PROBLEMS IN DETAIL ===--- Collimation with cartridge 5: ---------------------------- IDL 5.5a> collimate, 52266 Reading /data/spectro/54582/sdR-b1-00052266.fit Reading /data/spectro/54582/sdR-b1-00052267.fit COLLIMATE: Min offset = -0.45 pix COLLIMATE: Max offset = 0.72 pix COLLIMATE: RMS across CCD = 0.28 pix COLLIMATE: Mean offset = 0.13 pix COLLIMATE: Camera b1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of -4.8 degrees for spectro-1 COLLIMATE: (if red is already in focus) Log file = Collimate-54582-b1-00052266.log PostScript file = Collimate-54582-b1-00052266.ps Reading /data/spectro/54582/sdR-b2-00052266.fit Reading /data/spectro/54582/sdR-b2-00052267.fit COLLIMATE: Min offset = -0.52 pix COLLIMATE: Max offset = 0.10 pix COLLIMATE: RMS across CCD = 0.16 pix COLLIMATE: Mean offset = -0.17 pix COLLIMATE: Camera b2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict blue camera ring movement of 6.2 degrees for spectro-2 COLLIMATE: (if red is already in focus) Log file = Collimate-54582-b2-00052266.log PostScript file = Collimate-54582-b2-00052266.ps Reading /data/spectro/54582/sdR-r1-00052266.fit Reading /data/spectro/54582/sdR-r1-00052267.fit COLLIMATE: Min offset = -0.67 pix COLLIMATE: Max offset = 0.40 pix COLLIMATE: RMS across CCD = 0.29 pix COLLIMATE: Mean offset = -0.18 pix COLLIMATE: Camera r1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 1629 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston 1629" Log file = Collimate-54582-r1-00052266.log PostScript file = Collimate-54582-r1-00052266.ps Reading /data/spectro/54582/sdR-r2-00052266.fit Reading /data/spectro/54582/sdR-r2-00052267.fit COLLIMATE: Min offset = -0.62 pix COLLIMATE: Max offset = 0.41 pix COLLIMATE: RMS across CCD = 0.25 pix COLLIMATE: Mean offset = 0.04 pix COLLIMATE: Camera r2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of -383 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston -383" Log file = Collimate-54582-r2-00052266.log PostScript file = Collimate-54582-r2-00052266.ps % Program caused arithmetic error: Floating illegal operand