Subject: 3.5m Night Log 20211205 From: ajt@apo.nmsu.edu Date: Mon, 6 Dec 2021 14:14:51 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, December 05, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH02 W.Balmer W.Balmer,Z.Reeves BY02 B.Boizelle B.Boizelle UW02 P.Yoachim J.Jiang UW04 J.Werk J.Werk,G.Telford ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH02 TSPEC 17:10 18:20 JH02 ECHELLE 18:23 22:26 BY02 TSPEC 22:35 23:58 UW02 ARCTIC 00:14 02:40 UW04 ARCTIC 02:47 06:43 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH02/R 17:06 22:40 0 0 0 0 4.2 1.4 0 0 BY02/R 22:40 00:10 0 0 0 0 1.5 0.0 0 0 UW02/R 00:10 02:40 0 0 0 0 2.5 0.0 0 0 UW04/R 02:40 06:43 0 0 0 0 4.1 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend We had nice clear weather, but variable seeing. JH02 handed over a bit early, and there was a filter wheel swap between programs so UW04 started a few minutes after the scheduled time. Rotating the tertiary from NA1 to NA2 at 22:30 failed ("?LMSTOP clamp failed to fully close\") rotating then to TR2 first and then NA2 was successful. After dismounting ARCTIC, UW04 started taking darks (in LL mode) and the first one came out with uniform pixel values around 30k. Biases in Quad mode showed the same problem more or less on all quads and Bill said this would require an arctic init (unfortunately). This dropped 2 of the quads (UL & LR) but LL is working so UW04 is able to continue taking their darks this morning. ------- 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 -------------------------------------------------------------------------- 17:18 tcamera 392( 1094) -10 44 5.0 6.2 6.3 5.7 5.2 Ks 1.32 18:32 ecamera 310( -320) -23 78 4.6 4.8 5.2 4.4 4.7 ND3 0.96 22:41 tcamera 414( 1017) 38 57 5.3 4.3 5.1 4.5 4.6 Ks 1.24 00:30 arctic 445( 887) -33 64 5.1 4.1 4.7 4.3 4.4 SDSS_g 1.89 02:54 arctic 403( 888) 223 54 5.7 4.9 5.4 5.2 5.2 SDSS_r 1.34 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 42 15 11 336 (NNW) 441 clear none 17:00 41 15 9 315 (NW) 504 clear none 18:00 40 17 14 324 (NW) 441 clear none 19:00 39 18 12 323 (NW) 455 clear none 20:00 41 18 14 329 (NNW) 474 clear none 21:00 42 16 11 331 (NNW) 429 clear none 22:00 42 15 15 328 (NNW) 368 clear none 23:00 40 15 10 316 (NW) 330 clear none 00:00 41 14 13 360 (N) 392 clear none 01:00 41 15 4 352 (N) 450 clear none 02:00 43 13 16 28 (NNE) 409 clear none 03:00 42 13 10 18 (NNE) 538 clear none 04:00 42 13 11 8 (N) 503 clear none 05:00 40 14 8 357 (N) 498 clear none 06:00 37 16 8 355 (N) 455 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