Date: Mon, 20 Apr 1998 06:31:21 -0600 (MDT) From: Tia Hoyes Subject: 3.5m obslog 980419 SUNDAY APRIL 19, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER INSTRUMENT DATE START FINISH Geha SPICAM 4/19 17:30 00:25 Turner DIS 4/19 00:35 01:30 Ford DIS 4/19 01:30 06:55 INST SCHEDULED OBS WEATH EQUIP DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B NM05/S 21:04 00:30 3.4 0 0 0 0 0 0 0 0 PU01/S 00:30 01:25 0.9 0 0 0 0 0 0 0 0 JH02/R 01:25 05:01 1.0 2.6 0 0 0 0 0 0 0 (note: times listed include instrument change time) ACTIVITY LOG The telescope was opened at 18:50. Marla Geha and John Holtzman were on sight to driftscan with SPICAM. I observed for the Lens Monitoring program. I observed 0957. No problems. Holland Ford and Zlatan Tsvetanov tried to log in to begin their observing, but the net connection was down (went down at approx.9 pm). I observed for them. I observed 5 galaxies. Hopefully I did everything correctly. (* means a trouble report has been issued or appended to) FOCUS LOG APRIL 19, 1998 Best Telescope Wind Seeing Time Inst Focus Az El Temp# Dir MPH filter FWHM " 20:36 SPICAM -300(6001) 172.5 54.2 5.0/6.12 200.6 10.2 V 0.99 22:40 SPICAM -150(6046) 168.1 65.9 5.2/4.54 194.6 9.3 V 1.20 00:45 DIS -100(6281) 319.4 46.4 5.8/5.23 263.5 10.0 IN 1.21 # The first temp is air, the second is truss, both in degrees C. WEATHER APRIL 19, 1998 Wind Time Temp F Dewp. MPH. Dir. DUST Sky Precip. 16:01 46 14 6 261 (W) 464 light clouds none 17:01 48 3 5 242 (WSW) 699 light clouds none 18:01 51 8 5 256 (WSW) 593 light clouds none 19:01 44 6 9 224 (SW) 548 clearing none 20:01 39 8 8 203 (SSW) 556 light cirrus none 21:01 41 9 11 187 (S) 641 light cirrus none 22:01 41 10 11 196 (SSW) 724 heavy cirrus none 23:01 41 10 12 189 (S) 912 light cirrus none 00:01 42 10 9 267 (W) 707 clearing none 01:01 43 9 9 282 (WNW) 611 clearing none 02:01 42 9 10 255 (WSW) 639 clear none 03:01 41 9 9 268 (W) 637 light clouds none 04:01 41 7 10 297 (WNW) 712 light clouds none 05:01 40 10 7 311 (NW) 781 light clouds none 06:01 40 9 7 0 (N) 805 clearing 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: 2.39 Current guide software version:GIm Ctrlv3.0b11. -Tia