Subject: 3.5m Night Log 20250725 From: dembicky@apo.nmsu.edu Date: Sat, 26 Jul 2025 11:55:44 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, July 25, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY02 C.Kobulnicky N.Patten, N.Justice WY01 M.Moe C.Smith ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY02 KOSMOS 20:15 01:07 WY01 KOSMOS 01:10 05:20 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY02/R 20:15 01:10 0 0 0 0 4.0 0.9 0 0 WY01/R 01:10 06:05 0 0 0 0 4.9 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky A nice quiet night with clear skies. The dataq did stop at some point during the 2nd half of the night. 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 -------------------------------------------------------------------------- 20:57 kosmos 339( 1350) 165 61 18.0 20.3 19.8 20.3 17.2 -- 1.06 01:19 kosmos 439( 1233) -44 49 16.0 15.6 16.3 15.4 15.5 -- 1.03 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 71 37 8 259 (W) 895 mstly cldy none 17:00 70 35 8 311 (NW) 772 ptly cldy none 18:00 74 37 6 205 (SSW) 806 ptly cldy none 19:00 70 38 9 261 (W) 792 mstly clr none 20:00 65 38 6 244 (WSW) 843 clear none 21:00 63 37 3 194 (SSW) 804 clear none 22:00 63 40 4 188 (S) 814 clear none 23:00 63 37 10 184 (S) 897 clear none 00:00 62 40 10 176 (S) 866 clear none 01:00 61 44 10 156 (SSE) 959 clear none 02:00 59 49 14 134 (SE) 984 clear none 03:00 59 46 5 179 (S) 959 clear none 04:00 59 46 5 155 (SSE) 934 clear none 05:00 59 44 3 180 (S) 990 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