Date: Sat, 6 Feb 1999 07:12:21 -0700 (MST) From: Russet McMillan Subject: 3.5m Night Log 990205 FRIDAY FEBRUARY 5, 1999 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Gillespie Echelle 2/5-2/6 -- -- INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B EN02/S 19:03 05:31 3.6 6.8 0 0 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: Camron Hastings 2nd half observing specialist: Russet McMillan The telescope was never opened tonight due to consistently overcast skies. At 03:00, when the clouds thinned enough that the moon could be seen and the satellite indicated a possibility of further clearing, I realized that the weather conditions were not updating at all (see weather log below). Craig Loomis traced this to a cable that had been disconnected earlier in the evening. Once this was resolved, the clouds thickened again. It cleared just at dawn (of course). OBSERVER COMMENTS FOCUS LOG FEBRUARY 5 1999 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " #First temp is air, second temp is telescope. WEATHER FEBRUARY 5 1999 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 38 19 17 260 (W) overcast none 17:01 37 20 13 247 (WSW) overcast none 18:01 38 22 15 218 (SW) overcast none 19:01 38 22 15 261 (W) overcast none 20:01 38 23 16 259 (W) overcast none 21:01 38 25 14 235 (SW) overcast none 22:01 38 25 25 240 (WSW) overcast none 23:01 38 25 25 240 (WSW) overcast none 00:01 38 25 25 240 (WSW) overcast none 01:01 38 25 25 240 (WSW) overcast none 02:01 38 25 25 240 (WSW) overcast none 03:01 38 25 25 240 (WSW) overcast none 04:01 30 23 19 279 (W) overcast none 05:01 29 21 18 269 (W) overcast none 06:01 28 18 23 261 (W) overcast none 07:01 26 11 23 267 (W) mstly clr 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: 2.52 Current guide software version: GIm Ctrlv3.0b17.out - Camron Hastings, Russet McMillan