Subject: 3.5m Night Log 20221217 From: dembicky@apo.nmsu.edu Date: Sun, 18 Dec 2022 12:11:30 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, December 17, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH03 Q.Wang Q.Wang BY01 B.Boizelle B.Boizelle, M.Joner NM08 D.Bizyaev D.Bizyaev ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH03 KOSMOS 17:38 22:20 BY01 TSPEC 22:35 00:00 NM08 KOSMOS 00:15 02:00 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH03/R/T 17:08 22:25 0 0 0.6 0 4.7 0.0 0 0 BY01/R 22:25 00:10 0 0 0 0 1.7 0.0 0 0 NM08/R 00:10 06:51 0 4.9 0 0 1.6 0.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky KOSMOS checked out fine but when my observer started doing biases it failed mid way through the sequence. Long story short, I had to restart the torrent. That delayed us going on sky so I accounted it as equip loss. Clouds rolled in around 23:00, gradually growing thicker. By 02:00 we were not seeing anything on the slitviewer, but I stayed open just in case things got better. I finally closed the dome around 03:00 as I was seeing some possible radar returns just to our south. We didn't have any issues with the focus tonight, but it was also much warmer with the temps hovering just above freezing all night. I threw in the towel for the night at 05:00. ------- 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 -------------------------------------------------------------------------- 18:03 kosmos 626( 700) -79 49 0.6 1.4 1.5 1.7 1.0 -- 1.06 22:41 tcamera 413( 624) 130 57 0.7 0.2 0.9 0.2 0.7 Ks 0.94 00:22 kosmos 473( 485) -157 67 1.0 0.3 1.1 0.6 0.9 -- 1.10 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 35 -3 5 276 (W) 86 clear none 17:00 35 -6 7 345 (NNW) 29 clear none 18:00 34 -6 9 342 (NNW) 26 clear none 19:00 35 -7 9 267 (W) 35 clear none 20:00 35 -9 10 273 (W) 36 clear none 21:00 37 -10 8 270 (W) 57 clear none 22:00 35 -14 8 213 (SSW) 58 mstly clr none 23:00 33 -17 8 185 (S) 34 ptly cldy none 00:00 34 -29 9 216 (SW) 91 ptly cldy none 01:00 33 -27 12 224 (SW) 76 mstly cldy none 02:00 34 -18 13 263 (W) 84 cloudy none 03:00 34 -20 10 239 (WSW) 106 cloudy none 04:00 33 -10 13 217 (SW) 199 cloudy none 05:00 32 3 12 226 (SW) 314 cloudy 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