Subject: 3.5m Night Log 20251105 From: tmcquaid@apo.nmsu.edu Date: Thu, 6 Nov 2025 13:33:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, November 05, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UV05 Y.Zhou J.Davidson JH01 P.McCreery P.McCreery ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UV05 DSSI (visiting instrument)17:17 00:05 JH01 ECHELLE 00:10 05:56 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UV05/R 17:17 00:10 0 0 0 0 0.0 6.9 0 0 JH01/R 00:10 06:17 0 0 0 0 0.0 6.1 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.McQuaid Had to restart echelle icc at 15:15 due to exposures failing Restarted Dataq at 15:30 Otherwise a smooth, uneventful night. ------- 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 -------------------------------------------------------------------------- 17:35 dssi 440( 1542) 186 58 11.0 12.7 12.1 12.0 11.6 692 0.70 00:32 ecamera 403( -107) 223 68 9.9 8.4 9.2 8.2 9.0 ND1 0.91 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 54 15 8 304 (NW) 1018 clear none 17:00 51 16 1 316 (NW) 889 clear none 18:00 48 14 7 0 (N) 1100 clear none 19:00 50 11 3 3 (N) 686 clear none 20:00 52 8 8 297 (WNW) 581 clear none 21:00 51 8 5 260 (W) 578 clear none 22:00 50 11 5 253 (WSW) 554 clear none 23:00 50 12 6 215 (SW) 488 clear none 00:00 49 12 8 208 (SSW) 393 clear none 01:00 50 11 9 209 (SSW) 394 clear none 02:00 49 10 15 238 (WSW) 236 clear none 03:00 47 10 10 256 (WSW) 295 clear none 04:00 49 13 13 263 (W) 381 clear none 05:00 49 12 13 299 (WNW) 366 clear none 06:00 47 11 14 298 (WNW) 342 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