APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Monday October 6, 2008 (MJD 54746) ---=== OBSERVING TEAM ===--- Steph Snedden Audrey Simmons Jian Ge (UFL) ---=== OBSERVING PLAN ===--- Science! ---=== OBSERVING SUMMARY ===--- We finished cart 9, plate 3132 and obtained signal on cart 2, plate 3114 and cart 6, plate 3110. We closed around 08:45Z due to high humidity and remained closed the rest of the night. No problems to report. ---=== OBSERVING LOG ===--- Afternoon: ---------- Spectral collimation set for about 8C; the expected early night temperature. We may have to adjust the focus later, if we get lucky and the humidity stays low enough for us to stay open. 00:01Z - Started ventilating with doors and louvers open, fans on. Mounted cart 1, plate 3129. Night: ------ 00:46Z - Sunset. 00:46Z - Opened enclosure to partly cloudy skies. The humidity is near the limit though. Since the spectrographs filled just before sunset, we did not force another fill after we opened. We were not able to take more twilight data because of the clouds. 01:03Z - goToField cart 1, segue plate 3129. Two -gflats were used. Used an fk5 to find field since we were still in bright twilight. 01:39Z - Precals. 01:47Z - 30 min exposure. Seeing 2.3" S/N -> 1.7 1.7 2.6 3.0 02:02Z - End of 18-degree twilight. 02:20Z - 30 min exposure. S/N -> 1.7 2.3 3.2 3.2 02:52Z - Midcals. 02:59Z - 30 min exposure. Seeing 2.0" S/N -> 1.9 1.9 3.7 3.4 This plate is not done, and probably will not be completed before the next MARVELS run. 03:36Z - Mounted cart 9, segue plate 3132. Two -gflats were used. GSFOGTF. 03:47Z - Precals. 03:54Z - 30 min exposure. Seeing 1.7" 04:27Z - 30 min exposure. 05:00Z - Mid-cals. 05:09Z - 30 min exposure. Seeing 1.2" 05:42Z - 30 min exposure. 06:14Z - Postcals. Total signal gathered tonight: 32.0 21.0 40.3 29.8 This signal combined with previous nights, this plate is declared DONE. 06:29Z - Mounted cart 6, segue plate 3110. Two -gflats used. GSFOGTF. 06:31Z - Precals. 06:37Z - 25 min exposure. Seeing 1.0" 07:05Z - 25 min exposure. 07:33Z - 25 min exposure. 08:01Z - Mid-cals. 08:07Z - Started 25 min exposure, but the humidity rose over the limit after 910 seconds. We were forced to readout the exposure and close. Total S/N obtained on this plate tonight: 37.0 18.1 43.8 25.3 This plate is not quite done yet. 08:30Z - Closed enclosure due to high humidity. The humidity was not letting up. We called it a night. 10:59Z - endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 7724 23:13Z 23:28Z 100 O 73.54 77.18 39 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 55264, plate -9999 ------- 23:14 55264 0.0 bias 23:25 55265 0.0 bias ----- sequence 55266, plate 3121 ------- 23:29 55266 10.0 flat 23:31 55267 2.0 arc 23:36 55268 2.0 arc 23:39 55269 3.0 arc ----- sequence 55270, plate 3129 ------- 01:42 55270 10.0 flat 01:44 55271 2.0 arc 02:19 55272 1801.0 target 02:52 55273 1800.0 target 02:55 55274 10.0 flat 02:57 55275 2.0 arc 03:31 55276 1800.0 target ----- sequence 55277, plate 3132 ------- 03:50 55277 10.0 flat 03:52 55278 2.0 arc 04:27 55279 1800.0 target 04:59 55280 1800.0 target 05:02 55281 10.0 flat 05:05 55282 2.0 arc 05:41 55283 1800.0 target 06:14 55284 1801.0 target 06:17 55285 10.0 flat 06:20 55286 2.0 arc ----- sequence 55287, plate 3110 ------- 06:33 55287 10.0 flat 06:36 55288 2.0 arc 07:04 55289 1500.0 target 07:32 55290 1501.0 target 08:00 55291 1500.0 target 08:03 55292 10.0 flat 08:05 55293 2.0 arc 08:25 55294 910.0 target ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 01:36Z 1 3129 74.64 0.0025 45.84 -0.0004 236.42 0.0097 1.000120 03:55Z 9 3132 75.23 0.0013 47.93 -0.0010 237.28 0.0245 1.000200 06:31Z 6 3110 23.98 0.0022 62.65 -0.0007 200.14 0.0219 1.000050 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 01:36Z 1 3129 1.00012 -1184 264 50 75 45.9 5.9 9 13 - 2.3 03:55Z 9 3132 1.00020 -1974 -397 50 75 47.9 6.2 10 96 - 1.7 06:31Z 6 3110 1.00005 -493 787 50 24 62.7 5.7 8 111 - 1.0 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:15Z 46 40 12 35 (NE) 393 - Partly cloudy 22:47Z 45 39 15 352 (NNW) 354 - " 23:21Z 46 39 7 11 (N) 350 - " 23:57Z 45 38 6 344 (NNW) 318 - " 00:25Z 44 37 8 5 (N) 355 - " 00:57Z 43 37 10 11 (N) 339 - Clear 01:30Z 42 37 9 14 (NNE) 350 - " 02:01Z 42 37 8 41 (NE) 465 - " 02:34Z 43 37 7 93 (E) 398 - " 03:06Z 43 37 10 86 (E) 392 - " 03:38Z 42 37 9 98 (E) 352 - Partly cloudy 04:10Z 42 37 7 101 (E) 385 - " 04:42Z 42 37 9 109 (ESE) 495 - " 05:14Z 42 37 8 86 (E) 446 - Clear 05:47Z 42 37 8 99 (E) 443 - " 06:19Z 42 37 7 102 (ESE) 508 - " 06:49Z 42 37 8 109 (ESE) 428 - " 07:19Z 43 37 7 110 (ESE) 494 - " 07:50Z 42 37 8 87 (E) 497 - " 08:23Z 40 37 7 86 (E) 539 - " 08:55Z 40 37 8 91 (E) 507 - " 09:27Z 40 37 10 88 (E) 541 - " 09:59Z 40 37 9 95 (E) 491 - " 10:31Z 40 37 9 106 (ESE) 523 - " 11:03Z 41 36 7 113 (ESE) 521 - ---=== TELESCOPE STATUS ===--- 00:01Z - Began ventilation. Doors and louvers opened, fans on. 00:46Z - Opened enclosure. 08:45Z - Enclosure is on, doors and louvers are closed, and fans are off. No interlocks bypassed. Status at: 11:03Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge 6 Counterweights at: 255 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 121.10 lbs, 11.94 psi Imager 144.00 lbs, 18.74 psi ---=== SOFTWARE USED ===--- IOP/SOP: v4_39_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_43 SoS: v5_1_8 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -0.0310 -0.0300 Axial B 0.0360 0.0390 Axial C -0.0390 -0.0400 Trans D -0.7560 -0.7570 Lateral E 10.5791 10.5537 Lateral F 12.1666 12.1539 GALILS Commanded: 10450. -100. 5750. 8600. 10350. 10000. Actual: 10471. -76. 5755. 8616. 10374. 10023. SETMIR VALUES PriDesOrient: 0.00 -11.72 8.60 496.70 640.50 PriOrient: 1.06 -11.65 8.77 495.77 639.59 SECONDARY: ---------- Focus: 0.00 Air Temp.: 6.9 Alt.: 30.000802 MIGS TONIGHT NOMINAL Axial A 18.5640 18.5620 Axial B 15.6110 15.6080 Axial C 13.8180 13.8170 Trans D 15.1100 15.1170 GALILS Commanded: 1626654. 1528783. 1595605. -2950. -4550. Actual: 1626627. 1528808. 1595583. -2945. -4561. SETMIR VALUES SecDesOrient: 1257.00 -12.00 -28.00 -39.00 94.77 SecOrient: 1257.01 -12.01 -28.01 -39.20 94.71 ---=== PROBLEMS IN DETAIL ===--- Afternoon spectro collimation check: ----------------------------------- Original positions sp1: Right_open_sensor Off Right_closed_sensor On Coll_motor_A 59 01P0000000059 Coll_motor_B 58 02P0000000058 Coll_motor_C 60 01P0000000060 Coll_motor_A_status 132 01S0132 Coll_motor_B_status 132 02S0132 Coll_motor_C_status 133 01S0133 Requested_exp.time 0 Exp_time_left 0 Last_exp.time 3 Last_open_transit.time 705 Last_close_transit.time 525 Humid_Hartmann 10.0 0xFE37 Humid_Cen_Optics 10.1 0xFE35 Temp_Median 11.9 Temp_Hartmann_Top 11.3 (0xFE26) Temp_Red_Cam_Bot 11.8 (0xFE11) Temp_Red_Cam_Top 12.0 (0xFE0A) Temp_Blue_Cam_Bot 12.2 (0xFE01) Temp_Blue_Cam_Top 11.9 (0xFE0D) sp2: Right_open_sensor Off Right_closed_sensor On Coll_motor_A -2250 01P-0000002250 Coll_motor_B -2262 02P-0000002262 Coll_motor_C -2249 01P-0000002249 Coll_motor_A_status 132 01S0132 Coll_motor_B_status 132 02S0132 Coll_motor_C_status 133 01S0133 Requested_exp.time 0 Exp_time_left 0 Last_exp.time 3 Last_open_transit.time 710 Last_close_transit.time 620 Humid_Hartmann -25.0 0x0 Humid_Cen_Optics 10.5 0xFE30 Temp_Median 9.7 Temp_Hartmann_Top 10.3 (0xFE50) Temp_Red_Cam_Bot 10.4 (0xFE4C) Temp_Red_Cam_Top 9.5 (0xFE74) Temp_Blue_Cam_Bot 9.8 (0xFE64) Temp_Blue_Cam_Top 9.7 (0xFE68) Collimate results: COLLIMATE: Min offset = -0.75 pix COLLIMATE: Max offset = 0.22 pix COLLIMATE: RMS across CCD = 0.28 pix COLLIMATE: Mean offset = -0.30 pix COLLIMATE: Camera r1 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 2727 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston 2727" Log file = Collimate-54746-r1-00055268.log PostScript file = Collimate-54746-r1-00055268.ps Reading /data/spectro/54746/sdR-r2-00055268.fit Reading /data/spectro/54746/sdR-r2-00055269.fit COLLIMATE: Min offset = -1.13 pix COLLIMATE: Max offset = -0.02 pix COLLIMATE: RMS across CCD = 0.33 pix COLLIMATE: Mean offset = -0.39 pix COLLIMATE: Camera r2 appears to be OUT-OF-FOCUS (|mean| > 0.15 pix) COLLIMATE: Predict (red) piston movement of 3554 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston 3554" Since we may have a problem with humidit later, we decided to leave the spectro focus alone for now. It is set for the expected early night temps. If we get to stay open, we may need an adjustment later.