Date: Sat, 12 Dec 1998 06:07:10 -0700 (MST) From: Karen Gloria Subject: 3.5-m obslog 981211 FRIDAY DECEMBER 11, 1998 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT DATE START FINISH York Richards DIS 12/11-12 18:26 05:28 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B UC01/R 18:26 05:28 0 0 0 0 6.8 4.2 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: Karen Gloria The telescope was opened at 19:00. Gordon Richards observed for UC01. The seeing was poorer than average, but improved a bit overnight. OBSERVER COMMENTS UC01 (Richards): "All in all, a pretty good night. Over 7 hours of exposure time on the sky. Got a bit of a slow start due to not being able to take cals in the afternoon. Lost about an hour of time on the sky. Seeing was quite bad early in the night. Other than that, things went rather smoothly. New quartz lamps are great. Still the same old network problems..." FOCUS LOG DECEMBER 10 1998 Wind Time Inst Focus Az El #Temp Dir MPH filt FWHM " 19:15 slit cam -100(5924) 209 48 -5.3/-3.2 54 19 none 7.89 19:50 guider 53696(5924) 197 54 -4.3/-4.2 51 27 none 2.5 00:40 slit cam + 25(5975) 106 70 -1.6/-2.5 58 22 none 1.2 #First temp is air, second temp is telescope. WEATHER DECEMBER 10 1998 Wind Time Temp F Dewp F MPH Direction Dust Sky Precip. 16:01 26 14 10 68 (ENE) clear none 17:01 24 17 6 88 (E) clear none 18:01 22 14 9 84 (E) clear none 19:01 22 1 21 65 (ENE) clear none 20:01 24 -5 24 57 (NE) clear none 21:01 25 -7 26 57 (NE) clear none 22:01 27 -12 25 55 (NE) clear none 23:01 27 -13 26 47 (NE) clear none 00:01 28 -14 9 29 (NNE) clear none 01:01 29 -17 23 51 (NE) clear none 02:01 28 -17 15 38 (NE) clear none 03:01 29 -16 19 56 (NE) clear none 04:01 28 -16 21 50 (NE) clear none 05:01 29 -11 14 35 (NE) clear none 06:01 31 -10 15 38 (NE) 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: 2.42a. Current guide software version: GIm Ctrlv3.0b15. - Camron Hastings, Karen Gloria