Subject: 3.5m Night Log 20251126 From: dembicky@apo.nmsu.edu Date: Thu, 27 Nov 2025 13:13:47 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, November 26, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- BY03 M.Joner M.Joner, B.Boizelle CU06 Z.Berta-Thompson Z.Berta-Thompson ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- BY03 KOSMOS 17:06 00:05 CU06 KOSMOS 00:05 05:44 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- BY03/R 17:06 00:10 0 0 0 0 1.5 5.6 0 0 CU06/R 00:10 06:36 0 0 0 0 6.4 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky I could not access any APO related web pages tonight from on site. I could from off-site (ie. my home computer). That meant the weather log page would not open, I am going to do it from my home PC, Weather displays (although it seemed to be working fine from our weather monitor computer). 04:12UT motion error. This was during a normal slew from my obserrver. They were on their field for an hour. An axis int cleared it. No problems tonight with the telescope. ------- 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 -------------------------------------------------------------------------- 17:46 khigh 520( 818) 46 69 3.2 4.3 4.2 3.7 3.2 -- 1.00 20:12 khigh 495( 750) 111 72 5.1 3.4 4.0 3.2 4.4 -- 0.92 00:21 khigh 645( 953) 57 54 5.7 4.4 4.9 4.2 4.8 -- 0.97 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 42 11 16 290 (WNW) 174 ptly cldy none 17:00 39 5 10 310 (NW) 160 ptly cldy none 18:00 38 16 12 319 (NW) 311 mstly clr none 19:00 38 7 9 343 (NNW) 201 mstly clr none 20:00 42 6 4 340 (NNW) 100 mstly clr none 21:00 42 15 12 332 (NNW) 116 clear none 22:00 41 17 7 350 (N) 144 clear none 23:00 42 14 14 360 (N) 93 clear none 00:00 41 14 10 355 (N) 117 clear none 01:00 40 17 18 20 (NNE) 146 clear none 02:00 40 17 11 7 (N) 94 clear none 03:00 45 14 12 64 (ENE) 37 clear none 04:00 44 14 8 87 (E) 13 clear none 05:00 45 13 2 212 (SSW) 25 clear none 06:00 44 13 4 194 (SSW) 12 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: 3.1.8