Subject: 3.5m Night Log 20170401 From: mcmillan@apo.nmsu.edu Date: Sun, 2 Apr 2017 12:51:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, April 01, 2017 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- J.Tobin J.Tobin, students DIS --:-- --:-- M.Hammergren K.Nault,M.Brucker ARCTIC --:-- --:-- C.Sakari C.Sakari ECHELLE 02:40 06:00 INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- OU01/R 19:32 00:10 0 4.6 0 0 0.0 0.0 0 0 AD02/R 00:10 02:10 1.5 0.5 0 0 0.0 0.0 0 0 UW05/R 02:10 06:41 0.5 0 0 0 4.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan We had clouds and intermittent snow in the afternoon and evening. I tried opening briefly in twilight, but clouds quickly moved in and we weren't even able to focus, so I didn't count that time as used. Around midnight I was able to see stars so I thought I would re-open the cloudcam, but on my way to open it I got a faceful of snow. The radar was very hard to interpret. A while later, with radar in very nearly the same place, the sky was completely clear so I decided to open. After that we watched the satellite and radar nervously, but aside from a short wave of thicker clouds most of the time was clear. No trouble with the telescope or equipment. ARCSAT closed during the one wave of clouds because it was not seeing the big telescope as being open, so that will need to be looked at. But when open, even ARCSAT behaved reasonably well. Students with the OU class: P. Vallely, B. Stephenson, R. Sharma, N. Reynolds, H. Mishra, M. Dogruel, J. Derkacy, M.Clement, H.Choi, S.Bruton ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 02:46 ecamera 810( -699) -117 49 0.4 0.6 1.7 0.6 0.6 ND1 1.64 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 38 21 17 240 (WSW) 2900 cloudy lt snow 17:00 36 20 14 218 (SW) 2956 cloudy none 18:00 36 20 7 258 (WSW) 2971 mstly cldy none 19:00 34 19 6 199 (SSW) 3007 ptly cldy none 20:00 32 20 12 30 (NNE) 3266 mstly cldy none 21:00 31 26 4 101 (E) 1888 cloudy lt snow 22:00 30 24 2 142 (SE) 2504 cloudy lt snow 23:00 32 20 1 216 (SW) mstly cldy none 00:00 33 19 4 184 (S) 1999 mstly cldy lt snow 01:00 33 17 9 295 (WNW) 2077 ptly cldy none 02:00 32 19 11 325 (NW) 2182 ptly cldy none 03:00 33 17 12 325 (NW) 2121 ptly cldy none 04:00 31 19 6 356 (N) 2303 mstly clr none 05:00 30 17 12 354 (N) 2821 mstly clr none 06:00 29 19 13 24 (NNE) 2858 mstly clr 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 Telescope drives operational. Current TCC version: 1.2.2 Current TUI version: 2.6.0