Subject: 3.5m Night Log 20211220 From: ajt@apo.nmsu.edu Date: Tue, 21 Dec 2021 13:57:13 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, December 20, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- DD01 C.Gray C.Gray,K.McGouldrick JH02 W.Balmer W.Balmer,Z.Rustamkulov BY02 B.Boizelle B.Boizelle UW02 P.Yoachim J.Jiang CU08 J.Dexter J.Dexter,D.Foreman,A.Fix ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- DD01 ECHELLE 17:10 18:00 JH02 TSPEC 18:06 22:40 BY02 TSPEC 22:41 23:59 UW02 ARCTIC 00:12 02:10 CU08 TSPEC 02:46 06:54 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- DD01/R 17:10 17:59 0 0 0 0 0.8 0.0 0 0 JH02/R 17:59 22:40 0 0 0 0 0.3 4.4 0 0 BY02/R 22:40 00:10 0 0 0 0 0.0 1.5 0 0 UW02/R 00:10 02:40 0 0.5 0 0 0.0 2.0 0 0 CU08/R 02:40 06:53 0 0 0 0 0.0 4.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Clear for the first half of the night, with light clouds coming in around 00:30. UW02 had a lot of trouble with observations due to the clouds plus the moon combined with very faint targets, and though we stayed open, they ended their observations early. The telescope and instruments were all well-behaved. Happy winter solstice! ------- 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 -------------------------------------------------------------------------- 17:13 ecamera 444( -242) 89 50 2.9 3.3 3.5 3.1 2.7 ND5 0.84 18:38 tcamera 469( 966) 96 35 3.1 1.6 3.0 2.3 2.7 Ks 1.12 22:48 tcamera 439( 902) 6 63 3.1 1.3 2.6 2.0 2.3 Ks 0.92 00:20 arctic 477( 826) -65 24 3.0 1.5 2.7 2.4 2.8 SDSS_r 1.35 02:57 tcamera 448( 936) 9 61 3.4 1.9 3.4 3.0 3.1 Ks 0.99 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 38 -4 23 24 (NNE) 122 clear none 17:00 38 -1 23 19 (NNE) 85 clear none 18:00 37 -4 16 22 (NNE) 70 clear none 19:00 38 -4 15 34 (NE) 48 clear none 20:00 38 -3 15 26 (NNE) 47 clear none 21:00 38 3 17 12 (NNE) 43 clear none 22:00 37 3 15 27 (NNE) 43 clear none 23:00 38 3 13 11 (N) 87 clear none 00:00 38 -1 13 28 (NNE) 112 mstly clr none 01:00 38 -2 15 33 (NNE) 128 ptly cldy none 02:00 38 -2 13 35 (NE) 151 mstly cldy none 03:00 38 1 12 39 (NE) 109 ptly cldy none 04:00 37 3 13 7 (N) 96 ptly cldy none 05:00 38 4 7 2 (N) 79 ptly cldy none 06:00 38 5 8 341 (NNW) 58 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