Date: Thu, 24 Dec 1998 08:06:14 -0700 (MST) From: Russet McMillan Subject: 3.5m Night Log 981223 WEDNESDAY DECEMBER 23, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Diercks Deutsch SPIcam 12/22-23 18:31 00:10 Vandenberk Vandenberk DIS 12/23 00:10 05:35 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B DD01/R 18:31 00:10 0 0 0 0 2.4 3.3 0 0 0 UC05/R 00:10 05:35 4.7 0 0 0 0.7 0 0 0 0 (note: times listed include instrument change time) ACTIVITY LOG (* means a trouble report has been issued or appended to) 1st half observing specialist: Camron Hastings 2nd half observing specialist: Russet McMillan NM07 was once again preempted by DD01 for the first half. Second half started out partly cloudy and rapidly got worse. There was just barely time to focus DIS before the clouds rolled in. I closed at 00:50. It began to clear just at dawn. OBSERVER COMMENTS FOCUS LOG DECEMBER 23 1998 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " 18:30 SPIcam -250(5381) 101 48 -1.6/-1.3 275 9 R 1.6 19:00 SPIcam -200(5783) 105 53 -1.6/-1.5 267 12 ? 1.3 19:10 guider 49721(5779) 106 53 -1.6/-1.5 277 12 none 1.2 20:55 SPIcam -170(5729) 199 72 -1.3/-2.0 286 15 R 1.0 00:30 DIS -75(6086) 33 31 -1.5/-1.8 255 15 none 1.7 #First temp is air, second temp is telescope. WEATHER DECEMBER 23 1998 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 29 9 13 256 (WSW) mstly cldy none 17:01 30 6 10 261 (W) mstly cldy none 18:01 30 5 15 263 (W) mstly cldy none 19:01 29 7 11 273 (W) mstly clr none 20:01 29 7 10 279 (W) clear none 21:01 29 8 14 287 (WNW) clear none 22:01 30 9 9 265 (W) ptly cldy none 23:01 29 9 8 263 (W) mstly clr none 00:01 29 10 11 257 (WSW) ptly cldy none 01:01 30 9 6 245 (WSW) mstly cldy none 02:01 29 9 12 228 (SW) mstly cldy none 03:01 29 10 7 245 (WSW) mstly cldy none 04:01 29 10 7 266 (W) mstly cldy none 05:01 28 10 7 261 (W) mstly cldy none 06:01 28 11 8 266 (W) ptly cldy 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 > 1 micron per 0.1 cu. ft. 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: 2.42a. Current guide software version: GIm Ctrlv3.0b15. - Camron Hastings, Russet McMillan