Date: Sat, 2 Feb 2002 04:38:45 -0700 (MST) From: Jack Dembicky Subject: 3.5m Night Log 20020201 APACHE POINT OBSERVATORY 3.5m Telescope Night Log Friday, February 1st, 2002 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- D.York J.Mitchell SPIcam, guider 18:10 18:32 G.Wallerstein G.Wallerstein,C.Laws Echelle 22:10 23:25 T.Snow T.Snow,D.York Echelle 00:03 04:00 INST SCHEDULED WEATH EQUIP OBS DAY NOTUSED I/RO/DN START FINISH D B D B D B USE D B -------------------------------------------------------------------- UC09/R 17:31 18:31 0 0 0 0 0 0 0.4 0 0 UW04/R 18:31 00:10 0 0.7 3.7 0.2 0 1.1 0 0 0 CU03/O 00:10 06:02 0 2.0 0 0 0 3.9 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- 1st half Observing Specialist: Russet McMillan The telescope was re-assembled with new parts on the tertiary and partially collimated during the afternoon. We got on the sky shortly after sunset and let the Adler folks take some pictures which also served as rough checks of collimation and pointing. The collimation was slightly off; we tried using the Shack-Hartmann to test it, but clouds and poor seeing made the images useless. We did, however, confirm that the tertiary tip/tilts for the Shack-Hartmann are usable. I did a collimation by eye using SPIcam, then went on to a medium-sized pointing model. Both of these were made more difficult by the changing cloud conditions; on the pointing model we alternated between invisible stars and saturated stars. As a result, the engineering took a little longer than expected, but generally went well. After the pointing model, I adjusted the tertiary tip/tilts for the echelle position, did a quick echelle pointing check, and we were ready for science aside from the adverse weather conditions. We closed for just a few minutes in a early evening when the precipitation sensor was triggered by blowing snow. I used a flashlight to confirm that the blown snow was not reaching the observing level, then re-opened. Once we handed the telescope over for science, the observer took an exposure of one of his brighter objects, then concluded that the clouds were too thick to be of use. He had some trouble when his Remark (v.2.62) crashed due to slitviewer abuse, but I was able to take over observing from him with only a small delay until his computer was up again. 2nd half Observing Specialist: Jack Dembicky Don York was training Ted Snow on the Echelle tonight here at APO. We got them running under cloudy (but useable for bright stars with the echelle) at 00:03. Everything ran smoothly at 02-02-02 02:02:02 No '02' bugs!!! Clouds were persistent all night log but we could at least lock onto bright stars to further train Ted. The clouds became too thick to allow anything useful at 04:00 and I shut the telescope down at that point. ------- FAILURE LOG ------- PROG/INST FAILURE MODE TIME S/E/G/D/O TI/SHU START FINISH DESCRIPTION -------------------------------------------------------------------- UW04/E T/H 18:31 22:10 engr needed for new tert motors UW04/E I/S 22:35 22:45 Remark 2.62 crashed, SV abuse ---------------- FOCUS LOG --------------- Air/Truss Wind Time Instrument Focus Az El Temp-C Dir MPH filt FWHM --------------------------------------------------------------------- 22:10 Echelle 76(-719) 155 73 -2.6/-2.8 154 19 Clear 1.56 01:45 Echelle 285(-378) 136 69 1.8/-0.2 192 16 Clear 0.92 --------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:01 33 0 15 180 (S) 104 cirrus none 17:01 31 -17 17 155 (SSE) 44 cirrus none 18:01 29 -15 16 150 (SSE) 21 mstly cldy none 19:01 31 -19 23 148 (SSE) 51 mstly cldy none 20:01 31 -13 22 156 (SSE) 105 mstly cldy none 21:01 29 -5 17 163 (SSE) 118 ptly cldy none 22:01 27 1 20 163 (SSE) 204 ptly cldy none 23:01 30 0 13 189 (S) 127 mstly cldy none 00:01 25 8 17 181 (S) 335 mstly cldy none 01:01 31 4 10 176 (S) 187 mstly cldy none 02:01 34 4 13 189 (S) 797 mstly cldy none 03:01 30 4 18 147 (SSE) 353 mstly cldy none 04:01 28 6 6 165 (SSE) 554 mstly cldy 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 > 1u per 0.1 cubic feet. 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: 2.62. Current guide software version: GIm Ctrlv4.1b2. Current TCC version: 2.5.5 Current MC version: v1_7_3.