Date: Fri, 19 Mar 1999 00:22:19 -0700 (MST) From: Karen Gloria Subject: 3.5-m obslog 990318 THURSDAY MARCH 18, 1999 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH Strauss Fan DIS 3/18-19 - - Frieman Richards DIS 3/19 - - INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B PU01/R 19:35 00:10 4.6 - 0 - 0 - 0 0 - UC04/R 00:10 04:47 4.6 - 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 not opened tonight. Apache Point had several inches of snow accumulation over the past 24 hours. Total accumulation was 7 inches. Light snow and fog continued throughout the day, into the evening. The sky cleared around 21:30 MST. Due to the several inches of snow on top of the enclosure and the blowing snow in the air, I decided not to open the telescope tonight. I called Russet and suggested she not try to drive in for the second shift, since we weren't going to open the telescope. The instruments were filled at midnight. 2nd half observing specialist: Russet McMillan OBSERVER COMMENTS FOCUS LOG MARCH 18 1999 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " #First temp is air, second temp is telescope. WEATHER MARCH 18 1999 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 23 21 11 268 (W) 25 overcast lt. snow 17:01 21 20 13 317 (NW) 27 overcast lt. snow 18:01 20 19 6 289 (WNW) 142 overcast lt. snow 19:01 20 18 7 290 (WNW) 383 overcast lt. snow 20:01 18 16 10 1 (N) 609 overcast lt. snow 21:01 18 15 7 298 (WNW) 75 ptly cldy none 22:01 18 14 8 351 (N) 89 clear none 23:01 19 15 14 8 (N) 378 clear none 00:01 20 14 12 30 (NNE) 159 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 > 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. - Karen Gloria, Russet McMillan