Subject: 3.5m Night Log 20210209 From: cgray@apo.nmsu.edu Date: Wed, 10 Feb 2021 13:34:38 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, February 09, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW02 Y.Ivezi P.Yoachim NM04 M.Croom M.Croom, B.Stemock WY01 M.Brotherton J.McLane ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW02 ARCTIC 17:52 19:59 NM04 DIS 20:09 04:35 WY01 TSPEC 04:55 06:24 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW02/R 17:52 20:52 0 0 0 0 3.0 0.0 0 0 NM04/R 20:52 05:02 0 0 0 0 8.2 0.0 0 0 WY01/R 05:02 06:42 0 0 0 0 1.3 0.4 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray The night started out with light clouds which gradually became worse as the night went on. Things got a little windy and seeing wasn't great. But we had a couple hours gap of good sky before the clouds came back in. No 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 -------------------------------------------------------------------------- 18:19 arctic 672( 886) -27 50 4.7 5.5 5.7 5.1 4.8 sdss-i 0.86 21:08 dcamera 498( 489) 79 49 4.7 4.5 5.0 4.7 4.6 -- 1.63 00:47 dcamera 509( 470) 62 49 4.0 3.9 4.4 4.0 4.0 -- 1.40 05:01 tcamera 471( 719) -168 69 2.9 2.1 3.1 2.6 2.8 MK-s 0.94 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 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