Subject: 3.5m Night Log 20211206 From: ajt@apo.nmsu.edu Date: Tue, 7 Dec 2021 14:01:17 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, December 06, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW08 P.Szkody P.Szkody EN01 B.Ketzeback A.Townsend, R.McMillan NM05 M.Croom M.Croom ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW08 DIS 17:06 00:05 NM05 KOSMOS 00:23 00:35 EN01 KOSMOS 00:35 02:05 NM05 KOSMOS 02:05 06:44 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW08/R 17:06 00:10 0 0 0 0 4.5 2.5 0 0 NM05/R 00:10 00:35 0 0 0 0 0.4 0.0 0 0 EN01/W/D 00:35 02:05 0 0 0 0 1.5 0.0 0 0 NM05/R 02:05 06:44 0 0 0 0 4.7 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend,R.McMillan We had thin clouds at the start of the night that proceeded to get increasingly more annoying until about 02:00 and when they cleared up a little bit. Between about 12:15 and 02:05 it was too cloudy for NM05 to observe low surface brightness galaxies so we did a little bit of KOSMOS engineering with their standard star: Russet adjusted the slitviewer focus and measured the offsets between spectrograph and slitviewer positions, and we updated the instrument block with a new focus zeropoint to bring KOSMOS in line with the other instruments. The clouds eased up enough to observe galaxies around 02:00 and while they continued to be annoying we were able to continue observing for the rest of the night. KOSMOS focus value is after we changed the instrument block and shouldn't be directly compared to previous nights. ------- 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 -------------------------------------------------------------------------- 17:30 dcamera 438( 749) 19 51 3.8 5.8 6.0 5.1 4.8 -- 1.65 02:18 kosmos 450( 736) 132 37 3.1 1.4 2.8 2.2 2.4 -- 1.35 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 43 15 11 261 (W) 834 clear none 17:00 39 13 12 255 (WSW) 1061 mstly clr none 18:00 39 13 11 265 (W) 1356 mstly clr none 19:00 37 13 9 265 (W) 1308 mstly clr none 20:00 39 15 15 283 (WNW) 1379 mstly clr none 21:00 38 16 14 262 (W) 1612 mstly clr none 22:00 38 18 17 265 (W) 1646 mstly clr none 23:00 38 18 16 270 (W) 1398 ptly cldy none 00:00 39 18 17 245 (WSW) 970 mstly cldy none 01:00 37 19 14 252 (WSW) 1843 mstly cldy none 02:00 37 18 19 261 (W) 1795 ptly cldy none 03:00 37 18 23 264 (W) 1941 ptly cldy none 04:00 37 17 17 265 (W) 2040 ptly cldy none 05:00 37 17 19 255 (WSW) 1755 ptly cldy none 06:00 36 17 17 268 (W) 2227 ptly cldy 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