Subject: 3.5m Night Log 20251115 From: ajt@apo.nmsu.edu Date: Sun, 16 Nov 2025 13:42:22 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, November 15, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NA01 J.Bary J.Bary,S.Usman&Class NM07 W.Roberson A.Smith,A.Abbas ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NA01 ECHELLE 05:25 23:00 NA01 TSPEC 23:04 00:10 NM07 ECHELLE 00:15 06:11 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NA01/O 17:10 00:10 0 0 0 0 7.0 0.0 0 0 NM07/R 00:10 06:26 0 0 0 0 3.1 3.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Alcor computer had restarted itself today due to Windows updates, restarted Skywatch and Cyclope software and adjusted Cyclope seeing monitor exposures so that it can measure a star. We had one motion error 03:49 slewing down alt 25.6. Had to restart dataq around 06:00. Other than a few clouds at the start of the night we had great weather and seeing! ------- 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 -------------------------------------------------------------------------- 17:38 ecamera 387( 58) 11 68 9.7 12.2 12.0 11.3 9.9 ND2 0.73 19:31 ecamera 482( 38) -52 58 9.7 9.7 10.3 9.6 9.6 Clear 0.85 23:10 tcamera 462( 1165) 83 65 7.5 7.5 8.3 7.5 7.4 Ks 0.84 00:21 ecamera 419( -129) -65 34 7.4 7.0 7.7 6.8 7.0 ND3 1.23 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 57 28 10 263 (W) 983 mstly clr none 17:00 51 27 9 278 (W) 886 mstly clr none 18:00 49 27 10 276 (W) 893 mstly clr none 19:00 50 27 11 270 (W) 997 mstly clr none 20:00 49 27 10 264 (W) 944 clear none 21:00 48 29 9 263 (W) 986 clear none 22:00 47 31 12 266 (W) 883 clear none 23:00 47 30 10 262 (W) 882 clear none 00:00 46 25 10 272 (W) 645 clear none 01:00 45 25 15 304 (NW) 862 clear none 02:00 46 24 16 297 (WNW) 785 clear none 03:00 45 25 20 305 (NW) 742 clear none 04:00 44 25 10 321 (NW) 768 clear none 05:00 45 26 11 304 (NW) 811 clear none 06:00 43 28 8 318 (NW) 770 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