Subject: 3.5m Night Log 20200924 From: dembicky@apo.nmsu.edu Date: Fri, 25 Sep 2020 12:48:51 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, September 24, 2020 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW02 K.Bell K.Bell ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW02 Agile 19:05 06:15 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW02/R 19:05 06:45 0 0 0 0 5.8 5.9 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Observer notices some very faint horizontal banding in his images (see his images 2577 and 2578 for banding and 2477 for no bands). These were 5s exposures running continous. Around 00:08 the Agile guider quit working. Failed to find stars. It had been working flawlessly all night. Seeing was worse now (~1.8 and variable) and I was getting a "guider is running a previous command" error in the log window. Not sure what that was about. Restarted nubs per the wiki. This fixed the guider for about 3 frames and then it threw the same error again. Restarted the guider again, and it ran for maybe 20-30 frames and failed again. Seeing was jumping up and down but it appeared as though it missed a frame and then failed right after. Several minutes later the users exposure aborted on it's own. He restarted the exposures and I re-started guiding and we had no other issues (with the camera of guiding software) for the rest of the night. ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 19:29 AGILE 504( -911) 61 60 15.6 17.7 17.3 17.3 15.9 BG40 1.00 22:05 AGILE 454(-1071) 131 49 15.2 15.2 15.7 14.8 14.9 BG40 1.30 00:22 AGILE 454(-1158) 150 68 12.9 13.6 14.2 13.3 12.9 BG40 1.80 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 64 38 4 195 (SSW) 843 cloudy none 17:00 63 34 2 237 (WSW) 879 mstly cldy none 18:00 62 34 0 153 (SSE) 871 mstly clr none 19:00 61 32 1 216 (SW) 834 mstly clr none 20:00 60 31 3 157 (SSE) 817 clear none 21:00 60 30 6 131 (SE) 827 clear none 22:00 60 28 5 112 (ESE) 896 clear none 23:00 60 24 1 181 (S) 872 clear none 00:00 56 25 13 131 (SE) 1310 clear none 01:00 55 22 2 182 (S) 1311 clear none 02:00 58 23 11 216 (SW) 1036 clear none 03:00 58 31 7 180 (S) 1197 clear none 04:00 58 32 8 186 (S) 1146 clear none 05:00 57 30 3 189 (S) 1049 clear none 06:00 59 29 5 206 (SSW) 978 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 > 1u per 0.1 cubic feet. ---------- TELESCOPE SOFTWARE ---------- Current TCC version: 1.2.4 Current HUB version: v20171231_01 Current TUI version: 2.6.0