Subject: 3.5m Night Log 20210119 From: mcmillan@apo.nmsu.edu Date: Wed, 20 Jan 2021 12:52:23 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, January 19, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- AP01 S.Merkowitz R.McMillan GS02 S.Lepine N.Hejazi OU04 A.Kosakowski A.Kosakowski ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- AP01 APOLLO --:-- --:-- GS02 ECHELLE --:-- --:-- OU04 DIS --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- AP01/R 17:33 18:33 0 1.0 0 0 0.0 0.0 0 0 GS02/R 18:33 00:10 0.2 5.4 0 0 0.0 0.0 0 0 OU04/R 00:10 06:56 6.8 0 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan We had a variety of clouds, snow, high humidity, and high winds during the night. There was no chance of opening. Telescope parked facing south, but there is less than 1 inch of snow on it. ------- 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 -------------------------------------------------------------------------- ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 29 17 11 114 (ESE) 2502 cloudy none 17:00 27 17 13 76 (ENE) 1971 cloudy none 18:00 25 17 18 112 (ESE) 600 cloudy none 19:00 30 17 14 137 (SE) 1182 cloudy none 20:00 32 17 21 133 (SE) 745 cloudy none 21:00 30 19 17 153 (SSE) 801 cloudy none 22:00 27 22 15 151 (SSE) 921 cloudy lt snow 23:00 28 25 12 149 (SSE) cloudy lt snow 00:00 27 26 15 157 (SSE) cloudy lt snow 01:00 29 28 19 199 (SSW) cloudy lt snow 02:00 29 29 17 154 (SSE) cloudy lt snow 03:00 30 30 9 154 (SSE) cloudy lt snow 04:00 31 31 28 159 (SSE) cloudy lt snow 05:00 31 31 17 170 (S) cloudy lt snow 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: 2.6.0