Subject: 3.5m Night Log 20210503 From: cgray@apo.nmsu.edu Date: Tue, 4 May 2021 12:15:53 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, May 03, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- BY02 A.Mosenkov D.Bizyaev, A.Mosenkov NM03 A.Hedlund P.Gaulme AP01 S.Merkowitz R.McMillan ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- BY02 ARCTIC 23:23 01:04 NM03 ECHELLE 01:08 05:08 AP01 APOLLO 05:11 06:04 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- BY02/R 19:55 01:10 3.5 0 0 0 1.7 0.0 0 0 NM03/R 01:10 05:04 0 0 0 0 1.5 2.4 0 0 AP01/R 05:04 06:04 0 0 0 0 0.0 1.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray THe night started out with clouds and light rain. It hung around until near midnight and then cleared up quite nicely! Seeing was surprisingly good. 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 -------------------------------------------------------------------------- 23:30 arctic 309( 600) 104 70 6.1 7.3 7.8 7.3 6.2 sdss-g 1.34 01:13 ecamera 400( -450) 116 39 5.8 6.0 6.5 5.9 5.8 Clear 1.44 02:14 ecamera 407( -486) 115 47 5.2 5.3 5.9 5.1 5.0 Clear 1.05 04:15 ecamera 404( -563) 139 71 4.0 4.0 4.6 3.8 3.8 ND1 0.90 05:15 APOLLO 450( 1235) 46 27 3.1 3.4 4.0 3.1 2.9 530 1.50 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 9 14 252 (WSW) 2042 ptly cldy none 17:00 56 8 11 260 (W) 2013 ptly cldy none 18:00 50 7 11 271 (W) 1859 mstly cldy none 19:00 48 16 17 258 (WSW) 2500 mstly cldy lt rain 20:00 44 22 4 357 (N) 3427 mstly cldy none 21:00 46 18 15 250 (WSW) 2752 mstly cldy none 22:00 44 21 6 345 (NNW) 2607 ptly cldy none 23:00 43 22 13 360 (N) 2186 mstly clr none 00:00 44 21 10 16 (NNE) 2359 clear none 01:00 43 21 4 351 (N) 2280 clear none 02:00 42 23 9 328 (NNW) 2254 mstly clr none 03:00 41 24 5 303 (WNW) 2162 mstly clr none 04:00 39 25 6 353 (N) 2068 clear none 05:00 38 27 6 303 (WNW) 2000 clear none 06:00 37 27 6 343 (NNW) 2057 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: 2.6.0