Date: Thu, 24 Apr 2003 05:55:05 -0600 (MDT) From: Jack Dembicky Subject: 3.5m Night Log 20030423 Apache Point Observatory 3.5m Telescope Night Log Wednesday, April 23, 2003 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- R.Covarrubias R.Covarrubias SPIcam 00:00 01:00 C.Anderson C.Anderson, N.Chanover GrIm 01:00 05:50 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RO/DN START FINISH D B D B D B USE D B -------------------------------------------------------------------- UW03/R 20:35 01:00 3.4 0 0 0 1.0 0 0 0 0 NM02/O 01:00 05:27 0 0 0 0 2.1 2.3 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Due to high winds and dust, then clouds, I did not start cooling or open until 23:40. This was beneficial to Jeff M. and Jon D. who were busy upstairs hunting down and fixing a leak in the vacuum for DIS-Red. I opened the enclosure around 00:00 after it appeared that the dust levels were stable and below closure limits. Everything ran smoothly all night long. ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEGDFVO) TI/SHU START FINISH DESCRIPTION ----------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Air/Truss Wind Time Instrument Focus Az El Temp-C Dir MPH filt FWHM --------------------------------------------------------------------- 00:05 SPIcam -300(330) 126 68 0.9/3.2 271 13 r' 1.30 00:14 NA2gdr 1671(50671) 129 69 0.9/3.0 298 14 R 1.30 01:08 GrIm-f/20 -10(294) 130 70 0.5/1.4 271 17 H 0.79 01:17 NA2gdr -2817(45182) 130 70 0.5/1.4 265 20 R 1.13 --------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:01 44 4 29 260 (W) 11107 Clear Dust 17:01 45 5 38 253 (WSW) 10614 Clear Dust 18:01 44 8 29 256 (WSW) 9695 Clear Dust 19:01 40 9 37 267 (W) 6865 Clear Dust 20:01 38 9 25 268 (W) 3837 Pt. Cldy Dust 21:01 36 9 25 260 (W) 3022 Clouds Dust 22:01 36 11 24 286 (WNW) 3192 Clouds Dust 23:01 35 11 19 280 (W) 2070 Pt. Cldy Dust 00:01 34 11 12 274 (W) 2632 Clear none 01:01 34 11 13 267 (W) 1870 Clear none 02:01 33 9 11 271 (W) 1587 Clear none 03:01 33 8 18 275 (W) 1628 Clear none 04:01 32 9 18 295 (WNW) 1426 Clear none 05:01 31 9 15 296 (WNW) 1418 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 Primary, secondary, and tertiary mirrors in place and collimated. Primary support system operational. Mirror ventilation system in place. Telescope drives operational. Current Remark version: 2.80b Current guide software version: GIm Ctrlv4.1b4 Current TCC version: 2.6.8 Current TUI version: 0.61