APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Thursday May 28, 2009 (MJD 54980) ---=== OBSERVING TEAM ===--- Howard Brewington Audrey Simmons ---=== OBSERVING PLAN ===--- SEGUS2 Science! ---=== OBSERVING SUMMARY ===--- We were closed half of the night due to clouds, rain, and high humidity. We gathered signal on: Cart 7, plate 3442 We had to replace a FF lamp at the very end of the night. We put the old bulb on Wendell's desk. The 2.5m weather sensors are still not accurate, and cannot be trusted. When the 3.5m telescope was reading 91% humidity with a 1.9 dew point difference, the 2.5m telescope was reading 54% humidity with an 8-degree difference. The fire alarm control panel is still beeping in the plug room. The internet intermittently failed throughout the night for off-site websites, for some reason. The spectro dewer is low and will need to be changed soon. ---=== OBSERVING LOG ===--- Afternoon: ---------- 23:00Z Started the afternoon checkout. 23:21Z Filesystem Size Used Avail Use% Mounted on /dev/sda3 142G 119G 16G 89% / /dev/sda1 99M 30M 64M 33% /boot /dev/sdb1 917G 741G 130G 86% /data sdssfiles1p:/data1/data 1.5T 594G 799G 43% /files 23:27Z Restarted the servers 23:28Z Spectro focus checked 23:30Z Completed the apo_plotbias; results posted in Prob Section The laptop at the telescope was frozen when we checked the fiducials. It had to be restarted. Did not begin ventilating due to light raindrops. 02:01Z Sunset Night: ------- 03:41Z Twilight end Lots of clouds, rain, and humidity kept us closed for the beginning of the night. 05:35Z - Humidity dropped. Began ventilating. Forced a primary fill to help save time if we open soon. 06:19Z - Moonset 07:00Z - Mounted cart 7, plate 3442. 07:35Z - Opened enclosure afer the clouds finally broke. goToField cart 7, SEGUE plate 3442. Used fk5. 07:47Z - Precals. 07:54Z - 30 min exposure. Seeing 1.5" 08:27Z - 30 min exposure. 09:00Z - Mid-cals. 09:06Z - Thick clouds came in; we lost guide stars. We waited to take the next exposure. 09:13Z - 30 min exposure. This exposure did not meet the > 2.0 S/N criteria. 09:45Z - 30 min exposure. 10:18Z - Attempted to take a postcal, but only 3 FF lamps came on. We replaced the bottom left lamp (#3) and tried again (we did not put in a stop button). 10:22Z - Morning twilight 10:30Z - Postcals. We did not finish this plate. Total signal accumulated is below. MJD b1 r1 b2 r2 Texp Sum --------------------------------------------------- 54980 12.7 7.1 17.8 15.3 1800.0 52.9 54980 12.1 6.5 18.5 15.7 1801.0 52.8 54980 1.2 0.9 1.1 1.3 1800.0 4.5 54980 3.5 2.7 5.8 5.0 1800.0 17.0 --------------------------------------------------- Total: 29.5 17.2 43.2 37.3 7201.0 --> 127.2 Total when ALL b,r values > 2.0: 28.3 16.3 42.1 36.0 5401.0 --> 122.7 (limit=156.5) 10:45Z - Closed the enclosure and stopped ventilating. 10:47Z - endNight rejoiced. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- ---=== 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 61464, plate 3313 ------- 23:13 61464 0.0 bias 23:30 61465 10.0 flat 23:33 61466 2.0 arc 23:38 61467 3.0 arc 23:41 61468 3.0 arc ----- sequence 61469, plate 3442 ------- 07:49 61469 10.0 flat 07:52 61470 2.0 arc 08:26 61471 1800.0 target 08:59 61472 1801.0 target 09:02 61473 10.0 flat 09:05 61474 2.0 arc 09:45 61475 1800.0 target 10:18 61476 1800.0 target 10:30 61477 10.0 flat 10:33 61478 2.0 arc ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ 07:55Z 7 3442 201.53 0.0012 67.78 -0.0019 30.64 0.0038 1.000190 ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 00:26Z 4 0 1.00000 1 1257 0 121 29.8 11.0 10 323 - N/A 07:55Z 7 3442 1.00019 -1875 -368 50 202 67.8 9.1 10 93 - 1.5 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 23:14Z 56 26 13 302 (WNW) 1299 - Cloudy, rainy 23:45Z 56 28 8 311 (NW) 1258 - " 00:18Z 55 27 8 287 (WNW) 1115 - " 00:57Z 50 32 16 24 (NNE) 8533 - " 01:27Z 51 31 8 5 (N) 5899 - " 01:59Z 50 32 11 40 (NE) 5310 - " 02:29Z 48 35 16 66 (ENE) 1546 - " 03:00Z 47 35 18 68 (ENE) 669 - Cloudy 03:32Z 46 37 1 154 (SSE) 691 - " 04:03Z 43 39 14 138 (SE) 1149 - " 04:36Z 43 39 12 111 (ESE) 1098 - " 05:07Z 44 38 11 84 (E) 935 - " 05:41Z 45 36 14 79 (E) 663 - " 06:11Z 49 33 10 68 (ENE) 804 - " 06:45Z 49 32 9 66 (ENE) 750 - " 07:18Z 49 32 10 81 (E) 735 - " 07:53Z 48 32 9 87 (E) 712 - " 08:27Z 48 31 10 85 (E) 730 - Clear 09:00Z 48 32 13 78 (ENE) 669 - " 09:30Z 48 32 12 85 (E) 696 - Cloudy 10:02Z 48 31 11 85 (E) 700 - Partly cloudy 10:34Z 46 31 11 90 (E) 717 - Clear ---=== TELESCOPE STATUS ===--- 05:35Z - Doors and louvers opened, fans on. 07:35Z - Enclosure off. 10:46Z - Enclosure on, doors and louvers closed, fans off. No interlocks bypassed. Status at: 10:46Z Telescope stowed at: 30,121,00 mount Instrument mounted: Cartridge 7 Counterweights at: 270 lbs LN2 autofill systems: Connected and turned on. 180L LN2 dewar scales: Spectro 71.50 lbs, 18.49 psi Imager lbs, psi (IMAGER IS WARM) ---=== SOFTWARE USED ===--- IOP/SOP: v4_39_0 Watcher: v2_36_0 MCP: v6_6_0 TPM: tpm_v3_5_0 AstroDa: v15_13_1 TCC: TCC 2.10.0 2009-01-12 sdssProcedures: v2_44 SoS: v5_1_8 plate-mapper: v4_3_1 ---=== MIRROR NUMBERS ===--- PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A -0.0250 -0.0280 Axial B 0.0290 0.0470 Axial C -0.0300 -0.0360 Trans D -0.7600 -0.7600 Lateral E 10.5791 10.5791 Lateral F 12.1793 12.1793 GALILS Commanded: 10450. -100. 5750. 8600. 10350. 10000. Actual: 10450. -100. 5750. 8600. 10350. 10000. 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.: 13.9 Alt.: 29.775016 MIGS TONIGHT NOMINAL Axial A 18.5850 18.5840 Axial B 15.6310 15.6220 Axial C 13.8100 13.8150 Trans D 15.1010 15.1080 GALILS Commanded: 1626609. 1528808. 1595617. -2950. -4550. Actual: 1626650. 1528800. 1595600. -2950. -4550. SETMIR VALUES SecDesOrient: 1257.00 -12.00 -28.00 -39.00 94.77 SecOrient: 1257.00 -12.01 -27.99 -39.18 94.71 ---=== PROBLEMS IN DETAIL ===--- Filename 02% 05% 10% 50% 90% 95% 98% ------------------- ------ ------ ------ ------ ------ ------ ------ sdR-b1-00061464.fit -5.7 -4.3 -2.4 2.0 7.5 8.6 10.8 sdR-b2-00061464.fit -8.2 -6.0 -4.7 1.6 6.6 9.0 11.5 sdR-r1-00061464.fit -7.2 -5.5 -3.9 1.5 6.5 8.1 10.3 sdR-r2-00061464.fit -8.1 -6.6 -5.0 0.8 6.6 8.1 10.2 Done for 72.017774 sec. % Program caused arithmetic error: Floating underflow % Program caused arithmetic error: Floating illegal operand IDL 5.5a> apo_plotbias, 61464 --== Spetro Collimate Numbers ==-- IDL 5.5a> collimate, 61467 Reading /data/spectro/54980/sdR-b1-00061467.fit Reading /data/spectro/54980/sdR-b1-00061468.fit COLLIMATE: Min offset = -0.75 pix COLLIMATE: Max offset = 0.58 pix COLLIMATE: RMS across CCD = 0.27 pix COLLIMATE: Mean offset = -0.03 pix COLLIMATE: Camera b1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of 1.2 degrees for spectro-1 COLLIMATE: (if red is already in focus) Log file = Collimate-54980-b1-00061467.log PostScript file = Collimate-54980-b1-00061467.ps Reading /data/spectro/54980/sdR-b2-00061467.fit Reading /data/spectro/54980/sdR-b2-00061468.fit COLLIMATE: Min offset = -0.22 pix COLLIMATE: Max offset = 0.31 pix COLLIMATE: RMS across CCD = 0.14 pix COLLIMATE: Mean offset = 0.05 pix COLLIMATE: Camera b2 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict blue camera ring movement of -1.9 degrees for spectro-2 COLLIMATE: (if red is already in focus) Log file = Collimate-54980-b2-00061467.log PostScript file = Collimate-54980-b2-00061467.ps Reading /data/spectro/54980/sdR-r1-00061467.fit Reading /data/spectro/54980/sdR-r1-00061468.fit COLLIMATE: Min offset = -0.63 pix COLLIMATE: Max offset = 0.70 pix COLLIMATE: RMS across CCD = 0.34 pix COLLIMATE: Mean offset = -0.03 pix COLLIMATE: Camera r1 appears to be IN-FOCUS (|mean| < 0.15 pix) COLLIMATE: Predict (red) piston movement of 312 steps for spectro-1 COLLIMATE: Issue SOP command: "sp1; mechPiston 312" Log file = Collimate-54980-r1-00061467.log PostScript file = Collimate-54980-r1-00061467.ps Reading /data/spectro/54980/sdR-r2-00061467.fit Reading /data/spectro/54980/sdR-r2-00061468.fit COLLIMATE: Min offset = -0.87 pix COLLIMATE: Max offset = 0.17 pix COLLIMATE: RMS across CCD = 0.30 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 1236 steps for spectro-2 COLLIMATE: Issue SOP command: "sp2; mechPiston 1236" Log file = Collimate-54980-r2-00061467.log PostScript file = Collimate-54980-r2-00061467.ps % Program caused arithmetic error: Floating illegal operand IDL 5.5a>