From: Subject: 3.5m Night Log 20100810 Date: Wed, 11 Aug 2010 12:12:50 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, August 10, 2010 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- M.Klaene R.McMillan Fastcam,Agile, 21:00 06:00 DIS,Echelle,Tspec INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B -------------------------------------------------------------------- EN02/O 20:03 06:15 0 0 0 0 10.0 0.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan Another nice clear night, although seeing was more variable tonight. I started with some repeat fastcam tracking sets to evaluate a low-pass filter added to the altitude controller since last night. Then I did a high-altitude tracking test with Agile. The motion was similar but not quite the same as seen on spicam and fastcam; possibly this is because I didn't know exactly where the field center was and so the star may have been more affected by field rotation than I expected -- full analysis of the data should answer this. I checked focus on DIS and made a small adjustment to the spectrograph focuses. Afterward, I was still seeing some discrepancy between the slitviewer and the spectrograph focus values, but seeing had started to jump around more by this time so it was hard to know if the measurement was reliable. This test would be worth repeating if seeing is better tomorrow night. I finished up with observations of Epsilon Aurigae, which also served as complete checkout for the echelle and Triplespec, which was handy because a problem with the Tspec slitviewer which had escaped my detection at checkout showed up on the sky; that took me about ten minutes to correct. Otherwise, everything worked well. Spicam 2100 175.5 ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 21:57 FASTCAM 225( 1452) -3 60 16.8 18.8 17.9 17.4 17.6 1.00 23:59 AGILE 100(-1519) 83 77 17.0 17.0 17.3 16.6 16.8 r 0.90 02:55 dis-slit 147( 506) -82 73 15.9 15.5 16.0 14.9 15.5 - 0.96 04:10 dis-slit 156( 507) -94 57 15.4 15.2 15.4 14.5 14.9 - 1.20 05:14 ECHELLE -97( -448) 121 48 15.1 14.9 15.2 14.3 14.7 ND3 1.30 06:02 TSPEC 160( 786) 121 56 14.7 14.6 14.8 13.9 14.3 - 1.30 ------------- Weather LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 68 45 1 212 (SSW) mstly clr none 17:00 76 46 8 262 (W) mstly clr none 18:00 74 41 10 255 (WSW) mstly clr none 19:00 67 48 1 133 (SE) mstly clr none 20:00 64 48 6 109 (ESE) mstly clr none 21:00 63 46 11 128 (SE) mstly clr none 22:00 62 46 10 121 (ESE) mstly clr none 23:00 62 46 8 107 (ESE) mstly clr none 00:00 63 46 8 149 (SSE) clear none 01:00 60 47 12 118 (ESE) clear none 02:00 62 47 9 137 (SE) clear none 03:00 61 47 7 151 (SSE) clear none 04:00 59 48 1 176 (S) clear none 05:00 60 48 6 159 (SSE) clear none 06:00 58 48 6 174 (S) clear none Note: the wind was coming from the azimuth listed. The convention used is north=0 degrees, east=90 degrees. The dust count is particles > 1u per 0.1 cubic feet. TELESCOPE STATUS Telescope drives operational. Current TCC version: 2.13.0 Current TUI version: 1.8.0