APACHE POINT OBSERVATORY SDSS 2.5M OBSERVING LOG Wednesday August 4, 2004 (MJD 53222) ---=== OBSERVING TEAM ===--- Swing: Jurek Krzesinski Night: Dan Long, Pete Newman Support: Craig Loomis ---=== OBSERVING PLAN ===--- Post-engineering shake-down night 3: pointing model and other on-sky tests. ---=== OBSERVING SUMMARY ===--- Partial data for a pointing model obtained before weather forced closure. Primary mirror collimation needs to be adjusted on the sky. ---=== OBSERVING LOG ===--- Afternoon checkout: ------------------ Telescope seems to be in balance after we (Jon and Jurek) removed a weight mounted between counterweights 1 and 2, but counterweight positions for eng. camera are still 35 units below nominal values. DA and spectrographs are ok. (biases taken). Since eng. camera is mounted spectrograph focuses were not checked. MIG values in spec except M2 transverse D. Eng. camera responds properly. Both mirrors were homed and the primary was relaxed. Night: ------ See problems section for unexpected TPM messages. The infrared sky camera is functional once more following Craig's completion of the disk replacement in hoggpt. We opened at 02:20Z under fairly clear sky, but with weather threatening from the north. With the engineering camera, we start with rough checks on collimation to set up to obtain data for a pointing model. The good news is that the first track to an FK5 star shows a star in the field of view! The bad news is that the donut shows considerable coma, suggsting the primary tilt is wrong. We decide to proceed first with the pointing model, given we expect to be closed early by weather. A rotation check showed the engineering camera is centred to within 3 pixels. The first star was some distance from the centre of the frame, and following that, pointing (using last run's model) was quite good. This suggests the comination of reseting the azimuth tilt and removing the telescope position swindle from TCC is good. Well done to all concerned! After 39 of 72 points, clouds thickened enough to prevent getting more data, and with lightning continuing within 50 miles, we closed at 03:50Z to wait, but in vain. By 07:50Z, clouds, lightning withing 15 miles, high humidity, high dust counts dust and rain coalesced. In fact, the satellite images show the storm, centred on the NM-TX border, is larger than Hurricane Alex. We did not re-open. endNight was run onto the cloudy night tapes at 09:07Z. N.B. All observers who run logTool should first ssh to each of the machines from which software versions are obtained (using the full .apo.nmsu.edu manchine names) to ensure their known_hosts are correct, and hence logTool is able to get the data automatically. This results from operating system upgrades over the summer. ---=== IMAGING RUN SUMMARY ===--- Run Time Stripe Lambda Last Flavor Comments Start End Begin End Frame ------------------------------------------------------------------------- 4741 23:16Z 23:36Z 100 O 12.08 17.00 47 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): n QA Procedures Done (y/n): n UT Exp Time flavor comment (S/N)^2 totals ========================================== b1 r1 b2 r2 ----- sequence 27654, plate -9999 ------- 23:21 27654 0.0 bias ---=== TELESCOPE OFFSETS AND SCALE I ===--- Time Instrument Az Alt Rot Scale pos offset pos offset pos offset ------------------------------------------------------------------------------ ---=== TELESCOPE OFFSETS AND SCALE II ===--- ---=== DATA TAPE SUMMARY ===--- No tapes stored or shipped. ---=== FOCUS LOG ===--- setmir piston Temp Wind Time Inst scale M1 M2 Foc Az Alt (C) MPH Dir filt fwhm ------------------------------------------------------------------------------ 09:19Z engcam 1.00000 0 -2518 200 121 30.0 12.3 12 23 ND 1.0 ---=== WEATHER LOG ===--- Wind Time Temp F Dewp F MPH Direction Dust DIMM Sky 22:50Z 70 47 2 184 (S) 241 - Thin cloud 23:27Z 70 43 11 210 (SSW) 315 - " 01:28Z 69 42 7 197 (SSW) 298 - " 02:00Z 67 42 5 167 (SSE) 299 - " 02:36Z 66 41 12 165 (SSE) 347 - " 03:12Z 65 42 9 172 (S) 376 - " 03:45Z 65 44 9 180 (S) 343 - Thickening cloud 04:17Z 64 44 12 139 (SE) 511 - " 04:49Z 63 48 14 151 (SSE) 773 - " 05:22Z 62 51 16 125 (SE) 856 - Overcast 06:06Z 57 49 14 76 (ENE) 767 - " 06:42Z 54 50 26 72 (ENE) 763 - " 07:15Z 53 50 25 73 (ENE) 779 - " 07:59Z 52 52 23 73 (ENE) 20896 - Rain 08:31Z 53 53 9 80 (E) 18024 - " 09:04Z 53 53 17 51 (NE) 4982 - " ---=== TELESCOPE STATUS ===--- 01:57Z Doors open, fans on 02:23Z Enclosure off 03:50Z Enclosure on as a precaution, doors still open, fans on. 06:05Z Doors closed, fans off: humidity rising. No interlocks bypassed. Status at 09:09Z: Telescope stowed at: 30 deg altitude Instrument mounted: Cartridge 5 Counterweights at: 260 Autofill systems: On 180L LN2 dewar scales: Spectro 75 lb, 18 psi Imager 266 lb, 18 psi There are several hours of LN2 in the spectrograph secondary dewars, so given the immediate weather, we decided to leave the change to the day crew, we hope in better conditions. ---=== SOFTWARE USED ===--- IOP/SOP: v3_140_0 Watcher: v2_29_0 MCP: v5_25_0 TPM: tpm_v2_42_0 AstroDa: v14_47 TCC: TCC 2.7.2 November 11 2003 sdssProcedures: v1_92 SoS: Not obtained hoggPT: Not obtained plate-mapper: Not obtained ---=== MIRROR NUMBERS ===--- Before home/relax of mirrors: PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.4190 0.4450 Axial B 0.6670 0.6770 Axial C 1.1420 1.0980 Trans D -9.5300 -9.5280 Lateral E 10.5791 10.6172 Lateral F 10.5791 10.6172 GALILS Commanded: 5900. -3250. 2600. 7850. 10150. 9750. Actual: 5890. -3255. 2615. 7836. 10164. 9749. SETMIR VALUES PriDesOrient: 0.00 -19.60 10.70 586.50 1069.10 PriOrient: 0.00 -19.75 10.53 586.52 1069.84 SECONDARY: ---------- Focus: 0.00 Air Temp.: 22.2 Alt.: 29.998974 MIGS TONIGHT NOMINAL Axial A 1.5140 1.5100 Axial B 1.1190 1.0950 Axial C 1.1020 1.1110 Trans D 0.0640 0.0020 GALILS Commanded: 1628631. 1548128. 1574364. -3900. -8750. Actual: 1628641. 1548187. 1574504. -3899. -8726. SETMIR VALUES SecDesOrient: 1257.00 0.00 -25.00 0.00 146.27 SecOrient: 1256.94 0.03 -25.02 0.25 146.54 After home/relax of mirrors: PRIMARY: -------- Scale: 1.000000 MIGS TONIGHT NOMINAL Axial A 0.4520 0.4450 Axial B 0.6840 0.6770 Axial C 1.1160 1.0980 Trans D -9.5470 -9.5280 Lateral E 10.6045 10.6172 Lateral F 10.5918 10.6172 GALILS Commanded: 5900. -3250. 2600. 7850. 10150. 9750. Actual: 5890. -3255. 2615. 7836. 10164. 9749. SETMIR VALUES PriDesOrient: 0.00 -19.60 10.70 586.50 1069.10 PriOrient: 0.00 -19.75 10.53 586.52 1069.84 SECONDARY: ---------- Focus: 500.00 Air Temp.: 19.0 Alt.: 55.147459 MIGS TONIGHT NOMINAL Axial A 5.0870 1.5100 Axial B 4.6940 1.0950 Axial C 4.6720 1.1110 Trans D 0.1260 0.0020 GALILS Commanded: -2896269. -2976735. -2950530. 500. -4450. Actual: -2896313. -2976767. -2950450. 487. -4465. SETMIR VALUES SecDesOrient: -2334.58 0.00 -25.00 0.00 42.25 SecOrient: -2334.58 0.04 -25.01 -0.02 41.93 ---=== PROBLEMS IN DETAIL ===--- Unexpected TPM messages reported by watcher: These errors recurred: m2 mig (Communications Fault: 2004-08-05 00:34:54Z) These were seen once: ca (Channel Access Failure: TPM Down?: 2004-08-05 04:23:46Z)