Subject: 3.5m Night Log 20241224 From: cgray@apo.nmsu.edu Date: Wed, 25 Dec 2024 13:47:55 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, December 24, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- OU02 M.Kilic M.Kilic CU01 C.Murray C.Murray ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- OU02 ARCTIC 17:12 00:10 CU01 ARCTIC 00:10 06:32 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- OU02/R 17:12 00:10 0 0 0 0 7.0 0.0 0 0 CU01/R 00:10 06:55 0 0 0 0 2.0 4.8 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray WE HAVE THE MOST AMAZING STAFF!!! Bill and Cary came in today to bring the arctic quad back for our Christmas users. The night started clear with moderate seeing all night. We did have clouds starting to roll in for B half but they didn't cause us any issues. What did cause us issues was my inability to figure out when the rotator switches directions. We were on a target for 3 hours before the rotator reversed directions and I cannot figure out why that happened in the SE and not along the EW line. So, I needed to flip arctic 90 deg for the last hour of observing. No problems tonight. MERRY CHRISTMAS!!! I tried to write a Christmas Eve poem but...ran out of steam :( ------- 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 -------------------------------------------------------------------------- 17:46 arctic 428( 1110) 107 40 3.2 5.7 4.2 5.0 3.9 BG40 1.47 18:24 arctic 353( 986) 21 29 2.5 4.3 3.6 3.7 3.2 BG40 1.43 19:32 arctic 353( 867) 4 32 2.3 1.9 2.9 2.4 2.4 BG40 1.45 20:45 arctic 343( 825) -15 31 2.2 1.2 2.4 1.7 1.8 BG40 1.43 21:34 arctic 357( 838) 73 31 3.2 1.2 2.6 1.9 2.4 BG40 1.68 00:30 arctic 342( 794) 103 74 2.7 1.2 2.5 1.9 2.4 sdss-r 0.91 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 41 14 3 246 (WSW) 612 clear none 17:00 38 9 2 303 (WNW) 566 clear none 18:00 37 5 10 313 (NW) 428 clear none 19:00 37 12 11 290 (WNW) 435 clear none 20:00 36 14 8 269 (W) 470 clear none 21:00 37 14 10 276 (W) 446 clear none 22:00 38 15 7 289 (WNW) 502 clear none 23:00 37 20 10 286 (WNW) 616 clear none 00:00 37 20 8 237 (WSW) 652 mstly clr none 01:00 37 22 11 253 (WSW) 733 mstly clr none 02:00 35 20 12 230 (SW) 841 mstly clr none 03:00 35 20 15 222 (SW) 814 mstly clr none 04:00 37 20 11 196 (SSW) 737 mstly clr none 05:00 37 18 14 186 (S) 779 mstly clr none 06:00 36 18 16 201 (SSW) 1132 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: 3.1.5