Subject: 3.5m Night Log 20210416 From: cgray@apo.nmsu.edu Date: Sat, 17 Apr 2021 10:57:33 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, April 16, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW01 S.Hawley J.Wisniewski BY02 A.Mosenkov D.Bizyaev, A.Mosenkov ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW01 ARCTIC --:-- --:-- BY02 ARCTIC --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW01/R 19:43 01:10 1.1 4.3 0 0 0 0 0 0 BY02/R 01:10 06:22 5.2 0.0 0 0 0 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray gcam needed a hub restart at checkout. We were under clouds all night. A little light snow started falling around 11pm but never amounted to anything. After that came freezing fog, then humidity, then more freezing fog. I called it at 5am. We never opened. ------- 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 44 -1 9 270 (W) 1204 cloudy none 17:00 43 -1 17 266 (W) 1216 cloudy none 18:00 43 -1 10 276 (W) 1268 cloudy none 19:00 42 3 2 249 (WSW) 1125 cloudy none 20:00 41 6 11 223 (SW) 1193 cloudy none 21:00 40 9 14 182 (S) 1495 cloudy none 22:00 40 11 11 217 (SW) 1515 cloudy none 23:00 34 26 17 44 (NE) 1159 cloudy lt snow 00:00 30 27 19 61 (ENE) cloudy lt snow 01:00 29 27 12 91 (E) cloudy humid 02:00 30 28 11 85 (E) cloudy humid 03:00 32 27 7 226 (SW) cloudy humid 04:00 29 28 11 82 (E) cloudy humid 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