Subject: 3.5m Night Log 20251104 From: dembicky@apo.nmsu.edu Date: Wed, 5 Nov 2025 13:25:48 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, November 04, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UV04 S.Majewski J.Davidson, T.Sutherland ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UV04 DSSI 17:18 06:15 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UV04/O 17:18 06:16 0 0 0 0 0.0 13.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky 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 -------------------------------------------------------------------------- 17:48 dssi 400( 1510) 20 66 10.4 12.9 12.8 12.6 11.3 692nm 1.00 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 24 10 271 (W) 785 ptly cldy none 17:00 54 24 11 239 (WSW) 628 mstly clr none 18:00 52 22 12 232 (SW) 811 ptly cldy none 19:00 52 22 10 226 (SW) 780 mstly clr none 20:00 52 21 11 263 (W) 785 clear none 21:00 52 20 10 265 (W) 634 mstly clr none 22:00 50 22 14 266 (W) 664 mstly clr none 23:00 51 22 12 270 (W) 690 clear none 00:00 50 23 17 275 (W) 645 clear none 01:00 50 23 13 270 (W) 757 clear none 02:00 49 21 11 271 (W) 741 clear none 03:00 49 20 15 296 (WNW) 730 clear none 04:00 49 20 14 307 (NW) 805 clear none 05:00 48 18 11 351 (N) 967 clear none 06:00 48 17 5 353 (N) 1257 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