Subject: 3.5m Night Log 20220429 From: ajt@apo.nmsu.edu Date: Sat, 30 Apr 2022 12:59:19 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Friday, April 29, 2022 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- CU03 J.Stocke J.Stocke,B.Keeney JH05 Q.Wang Q.Wang ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- CU03 KOSMOS 20:55 02:22 JH05 DIS 02:34 02:54 JH05 DIS 03:32 04:53 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- CU03/O 19:52 02:30 0 0 0 0 6.6 0.0 0 0 JH05/R/T 02:30 06:08 2.0 0 0 0 1.7 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend 1-micron dust counts were elevated all night and I kept the fans in reverse mode. CU03 did calibrations with KOSMOS during twilight. JH05 triggered a ToO for B-half but started at 02:30 to give CU03 time to finish their observations. Closed at 02:54 due to a small spike in dust, opened half an hour later, and then closed again around 05:00. The dust came down a little at the very end of the night and JH05 tried to get one more standard star but the sky was too bright and we just closed up instead. Other than dust we had a good night—clear skies and pretty good seeing. ------- 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 -------------------------------------------------------------------------- 21:06 kosmos 620( 1415) 174 80 11.7 12.8 12.7 12.6 12.4 -- 0.97 21:54 kosmos 500( 1249) 45 45 10.5 11.4 11.9 11.1 11.1 -- 1.26 01:47 kosmos 299( 923) -38 66 9.3 9.1 9.9 9.0 9.2 -- 0.93 02:41 dcamera 455( 913) -78 38 9.3 8.8 9.5 8.7 9.0 -- 1.25 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 54 4 14 267 (W) 3953 clear none 17:00 59 3 15 249 (WSW) 4484 clear dust 18:00 58 3 16 269 (W) 4415 clear dust 19:00 56 0 15 282 (WNW) 4556 clear dust 20:00 53 0 11 262 (W) 4619 clear dust 21:00 53 1 17 250 (WSW) 4628 clear dust 22:00 51 1 15 237 (WSW) 4982 clear dust 23:00 51 1 16 266 (W) 4951 clear dust 00:00 50 1 8 310 (NW) 5064 clear dust 01:00 50 -1 8 314 (NW) 4453 clear dust 02:00 48 -1 12 43 (NE) 4837 clear dust 03:00 48 -2 16 11 (N) 6729 clear dust 04:00 50 -5 15 354 (N) 5664 clear dust 05:00 48 -3 21 66 (ENE) 6602 clear dust 06:00 49 -1 15 36 (NE) 5613 clear dust 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