Date: Tue, 5 May 1998 05:19:53 -0600 (MDT) From: Tia Hoyes Subject: 3.5m obslog 980504 MONDAY MAY 4, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER INSTRUMENT DATE START FINISH Turner Hoyes DIS 5/04 ----- ----- Hereld Bell GRIM2 5/04 21:55 23:00 Rodgers Rodgers GRIM2 5/04 ----- ----- INST SCHEDULED OBS WEATH EQUIP DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B PU01/S 21:19 21:59 0 0 0 0.7 0 0 0 0 0 UC08/R 21:59 01:10 0 1.0 0 2.2 0 0 0 0 0 UW10/R 01:10 04:41 0 0 1.6 1.9 0 0 0 0 0 (note: times listed include instrument change time) ACTIVITY LOG The telescope was open tonight at 21:50. Lens Monitoring was shut out but high winds and high dust counts. Eric Bell was available for the first half of the evening. I proceeded to focus at 22:00. I had to close at 23:00 due to high dust counts which was found to be heavy pollen. (see email posted to staff) Comments:We opened up for about 1 hour, before pollen forced us to close up. During that hour, we got good data for 1 galaxy and a couple of standards. Thanks, Tia -- Eric :) Bernadette Rodgers was available for the second half of the evening, but the pollen continued. (* means a trouble report has been issued or appended to) FOCUS LOG MAY 4, 1998 Best Telescope Wind Seeing Time Inst Focus Az El Temp# Dir MPH filter FWHM " 22:00 GRIM2 -150(6648) 252.4 44.9 9.9/12.78 267.1 20.1 Kprim 1.77 # The first temp is air, the second is truss, both in degrees C. WEATHER MAY 4, 1998 Wind Time Temp F Dewp. MPH. Dir. DUST Sky Precip. 16:01 58 8 33 264 (W) 3706 clear pollen 17:01 60 9 25 265 (W) 3033 clear pollen 18:01 58 10 15 257 (WSW) 2962 clear pollen 19:01 56 10 10 286 (WNW) 4746 clear pollen 20:01 52 12 16 273 (W) 3923 clear pollen 21:01 51 12 19 270 (W) 3110 clear pollen 22:01 50 14 15 266 (W) 2926 clear pollen 23:01 48 15 13 274 (W) 3389 clear pollen 00:01 48 16 20 283 (WNW) 2727 clear pollen 01:01 47 16 14 286 (WNW) 2735 clear pollen 02:01 46 16 14 270 (W) 2664 clear pollen 03:01 45 14 8 263 (W) 2757 clear pollen 04:01 43 13 16 271 (W) 2674 clear pollen 05:01 43 16 15 303 (WNW) 2890 clear pollen 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: 2.39 Current guide software version:GIm Ctrlv3.0b11. -Tia