Subject: 3.5m Night Log 20250629 From: tsutherland@apo.nmsu.edu Date: Mon, 30 Jun 2025 11:22:03 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, June 29, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW09 P.Szkody P.Szkody UW01 S.Hawley B.Morris ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW09 KOSMOS 22:11 01:49 UW01 ARCTIC 02:01 04:40 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW09/R 20:24 02:00 0 1.8 0 0 2.3 1.5 0 0 UW01/R 02:00 05:50 0 0 0 0 3.8 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland Pointing seems good tonight after last night's fix. Yippee! It was a nice, quiet night once we opened, with no telescope or instrument problems. ------- 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 -------------------------------------------------------------------------- 22:25 khigh 430( 1512) 253 59 16.1 16.6 17.0 16.5 16.0 -- 1.72 23:11 khigh 355( 1365) 111 66 13.6 15.1 15.8 15.0 14.3 -- 1.93 02:06 arctic 412( 1409) 63 48 12.8 12.5 13.2 12.6 12.7 SDSS_z 1.34 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 62 40 15 87 (E) 541 mstly cldy lt rain 17:00 67 35 15 62 (ENE) 716 mstly cldy none 18:00 66 37 10 63 (ENE) 625 mstly cldy none 19:00 61 39 17 46 (NE) 754 mstly cldy none 20:00 65 30 20 48 (NE) 1520 mstly cldy none 21:00 61 40 7 217 (SW) 819 ptly cldy none 22:00 59 38 7 115 (ESE) 950 ptly cldy none 23:00 58 49 18 147 (SSE) 721 ptly cldy none 00:00 56 45 19 140 (SE) 407 ptly cldy none 01:00 56 47 18 144 (SE) 633 ptly cldy none 02:00 55 49 20 126 (SE) ptly cldy none 03:00 55 44 11 115 (ESE) 521 ptly cldy none 04:00 56 43 16 91 (E) 571 ptly cldy none 05:00 50 45 17 75 (ENE) ptly cldy 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