Subject: 3.5m Night Log 20230222 From: ajt@apo.nmsu.edu Date: Thu, 23 Feb 2023 12:33:52 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, February 22, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- AP01 S.Merkowitz R.McMillan UW05 K.Suberlak K.Suberlak GS01 D.Crenshaw J.Falcone ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- AP01 APOLLO --:-- --:-- UW05 KOSMOS --:-- --:-- GS01 KOSMOS --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- AP01/R 18:03 19:03 0 1.0 0 0 0.0 0.0 0 0 UW05/R 19:03 00:10 3.2 1.9 0 0 0.0 0.0 0 0 GS01/R 00:10 06:30 6.3 0 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Closed all night. Wind speed around 50mph with gusts up to 60mph at the start of the night. Also dusty! We had a yellow sunset. Once the winds died down we were stuck inside of fog clouds for the rest of the night, with a little bit of snow blowing around in the middle but no new accumulation. We had a few flickers during A half, but never lost power. Instruments have been filled. Temperatures were -3C to -5C, humidity between 70 and 100%. ------- 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 33 232 (SW) cloudy humid 17:00 45 270 (W) cloudy dust 18:00 34 270 (W) cloudy humid 19:00 32 256 (WSW) cloudy humid 20:00 29 268 (W) cloudy humid 21:00 30 255 (WSW) cloudy fog 22:00 27 263 (W) cloudy fog 23:00 33 269 (W) cloudy fog 00:00 25 251 (WSW) cloudy lt snow 01:00 24 252 (WSW) cloudy lt snow 02:00 24 263 (W) cloudy lt snow 03:00 26 234 (SW) cloudy humid 04:00 19 267 (W) cloudy humid 05:00 23 241 (WSW) 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