Date: Mon, 25 Jan 1999 08:29:19 -0700 (MST) From: Russet McMillan Subject: 3.5m Night Log 990124 SUNDAY JANUARY 24, 1999 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Stubbs Diercks SPIcam 1/24 18:54 19:55 Levenson Levenson, Sankrit GrIm2 1/24-25 19:55 00:10 Szkody Szkody DIS 1/25 00:10 05:37 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B UW02/R 18:54 19:55 - 0 - 0 - 1.0 0 - 0 JH03/S 19:55 00:10 - 0 - 0 - 4.3 0 - 0 UW01/R 00:10 05:37 0 0 0 0 4.7 0.8 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 17:30 MST. There were a lot of high clouds early in the night, during UW02. After that we had a pretty good hole in the clouds that lasted through most of JH03. No instrument or telescope problems to report. 2nd half observing specialist: Russet McMillan We remained open through second half, doing simultaneous observations with HST. The telescope and instruments all behaved perfectly, and aside from the clouds there were no problems at all. OBSERVER COMMENTS FOCUS LOG JANUARY 24 1999 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " 18:20 SPIcam -100(6504) 19 24 8.1/9.2 182 16 V 1.8 18:25 guider 51310(6503) 23 25 8.1/9.1 162 24 R+ND2 2.0 18:45 SPIcam -200(6378) 20 26 8.3/8.8 182 25 I 1.5 20:10 GrIm2 -150(6387) 102 59 6.8/7.8 171 25 2.122 1.3 21:45 GrIm2 - 25(6460) 207 78 7.9/7.8 176 14 K-short 0.96 22:50 GrIm2 - 75(6405) 247 68 7.3/7.2 175 18 K-short 0.96 #First temp is air, second temp is telescope. WEATHER JANUARY 24 1999 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 52 11 13 189 (S) cirrus none 17:01 49 6 24 182 (S) cirrus none 18:01 48 5 18 179 (S) cirrus none 19:01 47 4 26 173 (S) high clds none 20:01 45 4 22 160 (SSE) high clds none 21:01 47 4 22 181 (S) cirrus none 22:01 43 2 18 178 (S) cirrus none 23:01 46 2 20 180 (S) cirrus none 00:01 46 1 20 179 (S) cirrus none 01:01 45 2 16 203 (SSW) mstly clr none 02:01 44 2 10 182 (S) cirrus none 03:01 47 4 8 234 (SW) cirrus none 04:01 47 3 10 233 (SW) cirrus none 05:01 46 2 12 241 (WSW) cirrus none 06:01 47 3 13 211 (SSW) cirrus none 07:01 44 1 9 196 (SSW) cirrus none 08:01 44 1 15 213 (SSW) cirrus 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. - Karen Gloria, Russet McMillan