Subject: 3.5m Night Log 20240417 From: ajt@apo.nmsu.edu Date: Thu, 18 Apr 2024 12:30:21 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, April 17, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM06 A.Peck A.Smith,A.Peck JH02 S.Li S.Li ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM06 ECHELLE 20:02 01:09 JH02 ECHELLE 01:10 06:02 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM06/R 19:44 01:10 0 0 0 0 0.0 5.4 0 0 JH02/R 01:10 06:21 0 0 0 0 2.2 2.9 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend We had a few pesky clouds but otherwise great night. 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 -------------------------------------------------------------------------- 19:09 ecamera 480( 342) 204 59 11.7 11.9 12.4 11.4 11.4 ND2 0.78 00:22 ecamera 397( 176) 34 23 9.9 9.5 10.2 9.6 9.8 Clear 1.49 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 61 8 14 231 (SW) 870 clear none 17:00 63 11 17 202 (SSW) 886 clear none 18:00 58 8 19 264 (W) 1008 clear none 19:00 56 7 16 264 (W) 1134 clear none 20:00 52 7 16 253 (WSW) 917 clear none 21:00 52 8 15 261 (W) 1059 clear none 22:00 52 9 20 259 (W) 960 clear none 23:00 51 10 15 269 (W) 784 clear none 00:00 50 8 13 271 (W) 692 mstly clr none 01:00 50 10 16 275 (W) 784 ptly cldy none 02:00 50 10 16 260 (W) 743 ptly cldy none 03:00 50 9 17 267 (W) 815 mstly clr none 04:00 48 10 11 294 (WNW) 767 clear none 05:00 48 8 14 297 (WNW) 719 clear none 06:00 48 7 11 294 (WNW) 576 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