Date: Sat, 7 Feb 1998 05:53:18 -0700 (MST) From: Tia Hoyes Subject: 3.5m obslog 980206 FRIDAY FEBRUARY 6, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER INSTRUMENT DATE START FINISH Corson/Hoyes DIS 2/06 16:50 20:10 Wyse GRIM2 2/06 20:15 04:05 Turner DIS 2/06 ----- ----- INST SCHEDULED OBS WEATH EQUIP DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B UW03/S 19:04 20:04 0 1.0 0 0 0 0 0 0 0 JH01/R 20:04 04:49 0 7.0 1.0 0 0 0.8 0 0 0 PU01/S 04:49 05:30 0 0 0.7 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) The telescope was opened this evening at 18:15. Charles Corson and I observed for UW03 at the request of Bernadette Rodgers. Things went fairly smoothly. Rosie Wyse was observing for JH01. We had about 45 minutes of cycling power to GRIM2 due to the instrument not flushing, but finally continued on for the rest of the night with minimal problems. I had to close at 03:55 due to overcast skies, and an approaching storm. Comments:A few problems with GRIM marred the early part of the night, but soon settled down into a good night. Until the weather closed in, but luckily late... The Lens Monitoring was shut out due to the impending weather. FOCUS LOG FEBRUARY 6, 1998 Best Telescope Wind Seeing Time Inst Focus Az El Temp# Dir MPH filter FWHM " 21:15 GRIM2 -125(5998) 160.9 73.4 -1.6/-0.43 297.3 9.2 J 0.95 23:45 GRIM2 -50(6100) 267.3 53.8 -1.7/-1.7 274.0 15.6 J 1.08 # The first temp is air, the second is truss, both in degrees C. WEATHER FEBRUARY 6, 1998 Wind Time Temp F Dewp. MPH. Dir. DUST Sky Precip. 16:01 32 6 9 307 (NW) 272 partly cloudy none 17:01 32 2 5 355 (N) 96 partly cloudy none 18:01 34 0 10 347 (NNW) 56 partly cloudy none 19:01 32 0 9 1 (N) 41 clearing none 20:01 32 7 11 320 (NW) 57 clear none 21:01 29 15 4 329 (NNW) 264 clear none 22:01 30 13 10 238 (WSW) 271 clear none 23:01 30 14 10 275 (W) 260 clear none 00:01 29 15 13 271 (W) 404 clear none 01:01 29 17 12 270 (W) 535 clear none 02:01 28 17 14 274 (W) 579 light clouds none 03:01 28 20 18 280 (W) 627 partly cloudy none 04:01 28 20 6 305 (NW) 587 overcast none 05:01 28 19 16 304 (NW) 450 partly cloudy light 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: 2.36 Current guide software version:GIm Ctrlv3.0b11. -Tia