Subject: 3.5m Night Log 20251129 From: dembicky@apo.nmsu.edu Date: Sun, 30 Nov 2025 13:29:48 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, November 29, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- OU05 J.Serna J.Serna CU06 Z.Berta-Thompson A.Stephens ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- OU05 TSPEC 17:06 23:52 CU06 KOSMOS 00:05 06:08 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- OU05/R 17:06 00:10 0 0 0 0 0.0 7.1 0 0 CU06/R 00:10 06:38 0 0 0 0 4.8 1.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky ThAr lamp looked normal tonight for the checkout image and IOL image. Motion error @07:06, this was after I just initialized the drives after changing insturments to KOSMOS. 56.5 deg alt. Axis init fixed. Echelle ThAr looked fine at the end of the night. They were doing morning cals with KOSMOS so I left it mounted. ------- 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 -------------------------------------------------------------------------- 17:15 tcamera 536( 1242) 38 51 4.1 7.4 6.4 7.6 5.1 Ks 1.20 00:17 khigh 700( 889) -25 55 3.2 1.8 3.3 2.9 3.1 -- 1.00 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 43 14 6 268 (W) 288 clear none 17:00 41 7 6 20 (NNE) 196 clear none 18:00 41 3 2 10 (N) 141 clear none 19:00 41 2 2 259 (W) 109 mstly clr none 20:00 37 11 5 122 (ESE) 229 mstly clr none 21:00 38 13 8 182 (S) 270 mstly clr none 22:00 39 14 11 183 (S) 228 clear none 23:00 38 18 14 184 (S) 264 mstly clr none 00:00 38 20 12 189 (S) 448 ptly cldy none 01:00 37 20 15 204 (SSW) 507 ptly cldy none 02:00 36 21 12 203 (SSW) 629 mstly clr none 03:00 35 22 11 217 (SW) 812 mstly clr none 04:00 35 24 10 240 (WSW) 1011 mstly clr none 05:00 33 24 10 236 (SW) ptly cldy none 06:00 34 24 13 240 (WSW) 1380 ptly cldy 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