Subject: 3.5m Night Log 20250220 From: dembicky@apo.nmsu.edu Date: Fri, 21 Feb 2025 12:59:59 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, February 20, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH04 C.Ingebretsen C.Ingebretsen WY02 M.Moe N.Patten, C.Smith UW01 P.Yoachim Z.Xu, Z.Liu ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH04 ARCTIC --:-- --:-- WY02 KOSMOS 00:00 03:45 UW01 KOSMOS 03:45 05:42 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH04/R 18:02 20:02 2.0 0 0 0 0.0 0.0 0 0 WY02/R 20:02 03:50 4.0 0 0 0 1.6 2.2 0 0 UW01/R 03:50 06:31 0 0 0 0 0.0 2.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Clouds keot us closed until midnight. No telescope issues. ------- 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 -------------------------------------------------------------------------- 00:18 kosmos 349( 728) 159 79 3.2 1.9 3.1 2.9 2.8 -- 0.98 03:50 kosmos 349( 706) -120 51 2.7 1.1 2.3 1.6 2.1 -- 0.98 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 40 11 13 237 (WSW) 1374 cloudy none 17:00 39 12 14 228 (SW) 1508 cloudy none 18:00 38 12 10 232 (SW) 1295 cloudy none 19:00 38 11 22 254 (WSW) 1556 cloudy none 20:00 39 12 13 243 (WSW) 1841 cloudy none 21:00 38 12 11 254 (WSW) 2041 cloudy none 22:00 39 11 13 277 (W) 1903 cloudy none 23:00 38 11 13 253 (WSW) 1811 mstly cldy none 00:00 37 12 12 252 (WSW) 2063 ptly cldy none 01:00 38 11 11 249 (WSW) 1965 mstly cldy none 02:00 37 11 14 250 (WSW) 2524 mstly clr none 03:00 36 10 16 260 (W) 2187 clear none 04:00 36 11 15 258 (WSW) 2487 clear none 05:00 36 11 11 256 (WSW) 1649 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