Subject: 3.5m Night Log 20240421 From: dembicky@apo.nmsu.edu Date: Mon, 22 Apr 2024 12:09:13 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, April 21, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- FG01 D.Buzasi D.Buzasi JH03 S.Betti C.Ingebretsen ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- FG01 ECHELLE 19:47 01:04 JH03 TSPEC 01:08 05:52 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- FG01/R 19:47 01:10 0 0 0 0 0.0 5.4 0 0 JH03/R 01:10 06:16 0 0 0 0 0.5 4.6 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky High cirrus clouds until around 03:00. No telescope 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 -------------------------------------------------------------------------- 20:08 ecamera 363( 215) 126 69 9.9 11.7 11.1 11.1 10.5 clear 0.92 01:10 tcamera 415( 1375) -1 70 8.8 8.8 9.5 8.8 9.2 Ks 0.98 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 35 7 219 (SW) 660 mstly clr none 17:00 56 35 4 218 (SW) 593 mstly clr none 18:00 51 26 2 232 (SW) 482 mstly clr none 19:00 52 18 2 228 (SW) 796 mstly clr none 20:00 49 15 2 242 (WSW) 972 mstly clr none 21:00 49 14 5 195 (SSW) 926 mstly clr none 22:00 50 12 5 205 (SSW) 1014 mstly clr none 23:00 50 12 5 191 (S) 985 mstly clr none 00:00 48 12 6 192 (SSW) 957 mstly clr none 01:00 48 11 5 186 (S) 1002 mstly clr none 02:00 48 14 7 186 (S) 932 mstly clr none 03:00 47 15 12 187 (S) 1163 clear none 04:00 47 17 9 207 (SSW) 1303 clear none 05:00 45 21 6 188 (S) 1310 clear none 06:00 43 25 5 200 (SSW) 1178 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: 3.1.5