Date: Mon, 30 Jun 1997 07:45:13 -0600 (MDT) From: Karen Gloria Subject: 3.5-m obslog 970629 SUNDAY JUNE 29, 1997 APACHE POINT OBSERVATORY OBSERVING LOG ACTUAL ASTRONOMER INSTRUMENT DATE START FINISH Turner DIS 6/29 21:57 22:33 Stubbs DIS 6/29-30 22:33 01:00 Magnier DIS 6/30 01:00 04:17 INST SCHEDULED OBS WEATH EQUIP DAY NOTUSED I/RS/DN START FINISH D B D B D B USE D B PU01/S 21:57 22:33 0.6 - 0 - 0 - 0 0 - UW12/R 22:33 01:00 2.5 - 0 - 0 - 0 0 - UW05/R 01:00 04:17 1.9 1.3 0 0 0 0.1 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 at 20:15 MDT. The controller for the guide camera filter wheel and piston was worked on during the day by CL. Chris Stubbs and Jeff Morgan used the twilight time to test the guider centroiding. I observed for PU01, then Chris Stubbs observed with DIS for UW12, while Jeff Morgan did some more work with the guider. Gene Magnier was the observer for UW05. *The altitude axis experienced a pointing error, which I found by looking at the magnesensor errors. I corrected it by running the altitude axis past a few of the sensors. *The azimuth axis ran away twice during the morning. The altitude axis overshot a slew but quickly corrected itself. I reopened the telescope at sunrise, as soon as Gene had finished his calibration images, to take guider instrument block data. The partial new instrument block has to be used in order to get the proper orientation data. This puts the star 30 or so centimeters off the camera in the focal plane (depending on where the telescope is aimed. I tried a -90 rotation, based on some information about the instrument block, still no star but there was no reason to believe it would land anywhere near the camera. I took the spectrograph off the instrument port so I could manually place the star on the camera. By the time I had the instrument off, the sky was too bright to see Vega or Altair bye eye in the port. This was about an hour after sunrise. Tomorrow morning I will take the instrument off as soon as Gene finishes his calibration images. FOCUS LOG JUNE 29 1997 Best Telescope Wind Seeing Time Inst Focus Az El #Temp Dir MPH filter FWHM " 20:40 guider 35000(6664) 184 83 18.6/22.6 R+ND2 1.1 22:05 DIS -300(6497) 243 71 19.1/20.7 182 7 r 1.4 00:35 DIS - 50(6867) 182 29 18.4/90.0 141 5 r 1.7 #The first temp is air, the second is truss, both in degrees Celsius WEATHER JUNE 29 1997 Wind Time Temp F Dewp. F MPH. Dir. Dust Sky Precip. 16:01 72 32 8 183 (S) 743 ptly cldy none 17:01 73 33 9 261 (W) 757 ptly cldy none 18:01 75 34 9 236 (SW) 807 ptly cldy none 19:01 72 33 3 203 (SSW) 853 ptly cldy none 20:01 68 31 6 250 (WSW) 826 clear none 21:01 67 30 1 243 (WSW) 780 clear none 22:01 66 30 8 178 (S) 775 ptly cldy none 23:01 66 30 7 188 (S) 771 ptly cldy none 00:01 66 30 9 194 (SSW) 814 clear none 01:01 65 33 3 82 (E) 815 clear none 02:01 62 34 6 184 (S) 801 clear none 03:01 64 31 7 192 (SSW) 942 clear none 04:01 64 31 1 200 (SSW) 986 clear none 05:01 62 34 7 143 (SE) 978 clear none 06:01 62 37 10 182 (S) 934 clear none 07:01 62 39 11 134 (SE) 919 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: 2.36. Current guide software version: GImCtrl1.1 6.29.97. -Karen