Subject: 3.5m Night Log 20220224 From: decolib@apo.nmsu.edu Date: Fri, 25 Feb 2022 13:04:02 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, February 24, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- GS01 M.Crenshaw J.Falcone,B.Meena,G.Polack,Z.Chapman OU05 K.Leighly J.Choi CG01 C.Gray C.Gray ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- GS01 KOSMOS 18:17 00:05 OU05 TSPEC 00:18 04:19 CG01 Echelle 04:40 05:50 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- GS01/R 18:05 00:10 0 0 0 0 6.1 0.0 0 0 OU05/R 00:10 04:42 0 0 0 0 2.4 2.1 0 0 CG01/R 04:42 06:27 0 0.6 0 0 0.0 1.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: D.DeColibus Due to KOSMOS slitviewer shutter problems, I had to focus KOSMOS in imaging mode. The shutter issues were very frequent, occurring every few exposures. We kept the slitviewer on only to monitor the position of the target relative to the slit, while actual guiding was accomplished with the NA2 guider. Otherwise, the sky was clear and conditions were good for A-half. As B-half started, thin clouds moved in, and they brought bad seeing with them. The clouds trended worse as B-half went on, and OU05 handed over a few minutes early. CG01 tried valiantly to pierce the clouds, but gave up at 05:50. ------- 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 -------------------------------------------------------------------------- 18:47 kimage 325( 432) 178 70 -2.1 -1.9 -2.5 -3.0 -2.6 -- 1.46 00:30 tcamera 415( 742) 298 56 -1.2 -1.6 -1.9 -2.3 -2.0 Ks 2.62 01:38 tcamera 376( 713) 0 60 -1.4 -1.3 -1.4 -1.7 -1.7 Ks 2.18 04:37 ecamera 438( -472) -102 80 -1.1 -1.1 -1.2 -1.4 -1.4 Clear 0.95 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 25 -9 12 14 (NNE) 437 clear none 17:00 25 -9 6 15 (NNE) 430 clear none 18:00 23 -7 12 48 (NE) 426 clear none 19:00 30 -24 6 357 (N) 371 clear none 20:00 29 -24 1 277 (W) 359 clear none 21:00 30 -17 8 269 (W) 264 clear none 22:00 30 -22 8 261 (W) 291 clear none 23:00 30 -2 11 312 (NW) 586 clear none 00:00 30 3 7 297 (WNW) 543 mstly clr none 01:00 30 4 16 253 (WSW) 557 mstly clr none 02:00 30 8 10 238 (WSW) 608 ptly cldy none 03:00 32 10 15 239 (WSW) 600 ptly cldy none 04:00 31 11 15 263 (W) 515 mstly cldy none 05:00 31 9 15 220 (SW) 535 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