Subject: 3.5m Night Log 20250325 From: cgray@apo.nmsu.edu Date: Wed, 26 Mar 2025 12:53:55 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, March 25, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW06 C.Orion C.Chandler, CU02 C.Murray C.Murray BY01 S.Call S.Call ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW06 ARCTIC 19:50 22:54 CU02 kosmos 23:10 05:10 BY01 TripleSpec 05:30 06:42 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW06/R 19:27 23:00 0 0 0 0 3.6 0.0 0 0 CU02/R 23:00 05:20 0 0 0 0 6.3 0.0 0 0 BY01/R 05:20 06:50 0 0 0 0 0.0 1.5 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray gcam needed a nubs restart at checkout The night started fairly clear with thin clouds rolling in around 10pm and rolling back out after midnight. They didn't cause us any problems and we had good seeing. Other than gcam, no problems tonight! ------- 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 -------------------------------------------------------------------------- 20:07 arctic 176( 1255) 31 68 10.8 14.5 14.2 14.3 13.0 CU-VR 1.04 23:24 kosmos 276( 1055) 51 61 10.7 10.2 10.8 10.0 10.4 -- 0.95 05:34 tcamera 255( 1231) -62 31 9.8 8.6 9.3 8.4 8.9 Ks 1.15 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 63 14 12 229 (SW) 301 clear none 17:00 64 17 13 233 (SW) 307 mstly clr none 18:00 57 13 8 200 (SSW) 301 mstly clr none 19:00 57 12 7 249 (WSW) 283 mstly clr none 20:00 53 12 8 229 (SW) 264 mstly clr none 21:00 53 11 5 193 (SSW) 300 mstly clr none 22:00 52 10 12 178 (S) 708 ptly cldy none 23:00 50 9 12 165 (SSE) 1024 ptly cldy none 00:00 51 7 13 167 (SSE) 1027 mstly clr none 01:00 52 9 11 167 (SSE) 1352 clear none 02:00 51 7 12 174 (S) 1136 clear none 03:00 50 6 10 182 (S) 1034 clear none 04:00 50 4 12 182 (S) 1018 clear none 05:00 50 4 10 176 (S) 1361 clear none 06:00 50 5 12 171 (S) 1454 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 SOFTWARE ---------- Current TCC version: 1.4.2 Current HUB version: v20171231_01 Current TUI version: 3.1.8