Date: Sun, 29 Nov 1998 05:50:27 -0700 (MST) From: Russet McMillan Subject: 3.5m Night Log 981128 SATURDAY NOVEMBER 28, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Turner Gloria SPIcam 11/28 - - York Mallouris SPIcam 11/28-29 - - Rodgers Rodgers DIS 11/29 - - INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B PU01/S 18:24 19:14 - 0.4 - 0 - 0.4 0 0 0 UC02/R 19:14 00:10 - 4.9 - 0 - 0 0 0 0 UW05/R 00:10 05:19 - 5.2 - 0 - 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: Karen Gloria The telescope was opened at 17:20 and closed at 18:50, due to clouds. I was able to get some twilight flats and a focus frame, but that was all. The first half observers were myself for PU01 and Chris Mallouris for UC02. 2nd half observing specialist: Russet McMillan The cloud camera was closed before midnight, since the sky was completely opaque. It started to rain around 01:30, eventually turning to a mixture with light snow. By the start of morning twilight, the snow was coming down heavily. I left the telescope pointed south for maximum insolation of the slit. OBSERVER COMMENTS FOCUS LOG NOVEMBER 28 1998 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " 18:20 SPIcam -200(6151) 187 61 7.3/7.8 221 17 r' 0.99 18:35 guider 51100(6171) 188 55 7.4/7.7 226 16 R+ND2 1.4 #First temp is air, second temp is telescope. WEATHER NOVEMBER 28 1998 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 46 33 20 218 (SW) ptly cldy none 17:01 44 33 15 223 (SW) ptly cldy none 18:01 44 31 21 223 (SW) mstly cldy none 19:01 45 26 21 205 (SSW) mstly cldy none 20:01 45 24 23 208 (SSW) mstly cldy none 21:01 45 24 18 196 (SSW) mstly cldy none 22:01 46 22 13 232 (SW) mstly cldy none 23:01 45 21 15 220 (SW) mstly cldy none 00:01 44 23 14 239 (WSW) cloudy none 01:01 41 25 9 255 (WSW) cloudy rain 02:01 38 28 6 266 (W) cloudy rain 03:01 38 30 8 197 (SSW) cloudy rain/snow 04:01 35 30 15 259 (W) cloudy rain/snow 05:01 35 34 20 210 (SSW) cloudy snow 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. - Karen Gloria, Russet McMillan