Subject: 3.5m Night Log 20250117 From: dembicky@apo.nmsu.edu Date: Sat, 18 Jan 2025 14:02:30 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, January 17, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW01 P.Yoachim P.Yoachim, D.Meng, Z.Xu, Z.Liu CU06 Y.Notsu Y.Notsu BY01 S.Call S.Call ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW01 KOSMOS 17:31 23:56 CU06 ARCTIC 00:15 05:20 BY01 TSPEC 05:45 06:48 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW01/R 17:31 00:10 0 0 0 0 3.7 2.9 0 0 CU06/R 00:10 05:26 0 0 0 0 0.0 5.3 0 0 BY01/R 05:26 06:56 0 0 0 0 0.0 1.5 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky KOSMOS disperser got stuck during twilight. Dome temp was around 0C. No further issues once I moved it by hand for the rest of the night. No 3.5m 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 -------------------------------------------------------------------------- 18:13 kosmos 273( 530) 135 51 -2.1 -1.1 -0.8 -2.0 -2.1 -- 1.00 20:28 kosmos 348( 490) -57 40 -3.7 -3.7 -3.0 -3.7 -3.7 -- 2.60 22:45 kosmos 400( 531) -103 19 -3.6 -4.3 -3.2 -4.2 -3.9 -- 2.30 00:19 arctic 409( 627) -18 54 -3.3 -4.0 -3.2 -3.9 -3.6 4170 0.88 00:21 NA2gdr 37318(37318) -19 54 -3.3 -4.0 -3.2 -3.9 -3.6 R 1.25 05:48 tcamera 407( 720) -8 51 -3.7 -4.8 -3.8 -4.7 -4.6 Ks 0.93 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 32 19 21 275 (W) 808 ptly cldy none 17:00 31 16 16 271 (W) 1479 ptly cldy none 18:00 28 16 16 269 (W) 2524 ptly cldy none 19:00 27 18 17 266 (W) 2570 ptly cldy none 20:00 26 18 14 287 (WNW) ptly cldy none 21:00 25 18 18 296 (WNW) mstly clr none 22:00 24 18 17 309 (NW) clear none 23:00 25 19 2 354 (N) clear none 00:00 26 18 6 14 (NNE) clear none 01:00 26 20 10 326 (NW) clear none 02:00 27 18 17 301 (WNW) clear none 03:00 25 18 13 326 (NW) clear none 04:00 24 17 15 296 (WNW) clear none 05:00 25 16 17 302 (WNW) clear none 06:00 23 16 14 309 (NW) 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: 1.4.2 Current HUB version: v20171231_01 Current TUI version: 3.1.5