Date: Wed, 23 Jul 1997 01:39:20 -0600 (MDT) From: Charles Corson Subject: 3.5m obslog 970722 TUESDAY JULY 22, 1997 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER INSTRUMENT DATE START FINISH Rodgers Grim 7/22 -- -- Rhodri Grim 7/23 -- -- Corson DIS 7/23 -- -- INST SCHEDULED OBS WEATH EQUIP DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B UW07/R 21:45 01:10 0 0 0 0 0 3.4 0 0 0 UW03/R 01:10 03:35 0 0 0 0 0 2.4 0 0 0 PUO1/o 03:35 04:35 0 0 0 0 0 1.0 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 removed from service for repairs to the altitude drive. Close inspection of the drive indicated the need to disassemble the drive box and service the drive shaft and bearings. The drive is reassembled and has been undergoing testing this evening with the anticipation that the telescope will be back in service 7/23. FYI, heavy rain and overcast conditions have been observed tonight with little to no change for the remainder of the evening. FOCUS LOG JULY 22, 1997 Best Telescope Wind Seeing Time Inst Focus Az El #Temp Dir MPH filter FWHM " #The first temp is air, the second is truss, both in degrees Celsius WEATHER JULY 22, 1997 Wind Time Temp F Dewp. F MPH. Dir. Dust Sky Precip. 16:01 58 49 15 112 (ESE) 972 17:01 55 49 16 62 (ENE) 958 18:01 53 49 16 71 (ENE) 650 19:01 53 49 18 61 (ENE) 646 20:01 51 48 19 71 (ENE) 619 21:01 51 47 18 58 (ENE) 539 22:01 54 47 9 94 (E) 489 23:01 55 51 10 94 (E) 628 00:01 56 51 9 92 (E) 719 01:01 55 51 1 30 (NNE) 629 02:01 55 51 4 95 (E) 700 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: GImCtrl.1 6.21.97. -Charles