Subject: 3.5m Night Log 20241227 From: ajt@apo.nmsu.edu Date: Sat, 28 Dec 2024 14:29:40 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, December 27, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW02 P.Yoachim J.Jiang JH07 C.Ingebretsen C.Ingebretsen NM05 W.Roberson W.Roberson,A.Smith ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW02 KOSMOS 17:49 18:30 JH07 TSPEC 20:50 22:25 NM05 ECHELLE 03:11 05:18 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW02/R 17:14 20:42 2.3 0 0 0 1.2 0.0 0 0 JH07/R 20:42 00:10 1.9 0 0 0 1.6 0.0 0 0 NM05/R 00:10 06:56 4.0 1.7 0 0 1.0 0.1 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Closed 18:30-20:45 due to dust. Max at almost 8000 1um counts. Closed again at 22:25 due to radar; we got a few flurries after midnight but nothing that stuck. At about 03:00 the radar was clear and the clouds improved. Humidity and wind were elevated, I checked dust with handheld counter (500-1000 1um counts). We were able to open for a little while with terrible seeing before the wind went over the limit. Max gusts were around 48mph. No telescope or instrument problems. ------- 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 -------------------------------------------------------------------------- 18:02 kosmos 290( 620) 155 76 0.8 0.8 1.4 0.9 0.7 -- 1.11 21:01 tcamera 335( 904) -128 53 1.2 0.3 1.1 0.4 0.6 Ks 1.80 03:21 ecamera 397( -345) 60 82 -1.7 -0.8 0.0 -1.2 -1.6 ND2 3.50 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 34 19 13 261 (W) 722 mstly clr none 17:00 33 19 12 244 (WSW) 1128 mstly clr none 18:00 33 19 16 235 (SW) 2617 mstly clr dust 19:00 34 18 17 226 (SW) 5848 mstly clr dust 20:00 33 18 17 233 (SW) 7777 ptly cldy dust 21:00 34 21 14 265 (W) 3832 mstly cldy none 22:00 32 21 15 260 (W) 3189 mstly cldy none 23:00 31 22 18 281 (W) mstly cldy none 00:00 31 23 17 289 (WNW) mstly cldy snow 01:00 31 22 11 346 (NNW) mstly cldy humid 02:00 30 23 21 1 (N) mstly clr humid 03:00 29 23 16 334 (NNW) mstly clr humid 04:00 28 22 20 10 (N) mstly clr humid 05:00 29 21 24 19 (NNE) mstly clr humid 06:00 31 15 23 21 (NNE) 117 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: 3.1.5