Subject: 3.5m Night Log 20241218 From: tsutherland@apo.nmsu.edu Date: Thu, 19 Dec 2024 13:58:37 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, December 18, 2024 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW06 C.Chandler C.Chandler,M.Frissell NM07 A.Smith A.Smith,B.Roberson ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW06 ARCTIC 17:04 00:08 NM07 ECHELLE 00:12 06:52 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW06/R 17:09 00:10 0 0 0 0 3.3 3.7 0 0 NM07/R 00:10 06:52 0 0 0 0 0.0 6.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland,R.McMillan,A.Townsend Arcsat support library issues at the very start of the night (occurred at step 5). This happened multiple times through the night. Manually adjusted the focus as seeing was reported to be quite bad, and the focus script did not do a good job. Opened at 5:39 as cals were being taken. Adjusted gcam focus because the stars started looking like donuts. Arctic ion pump pressure was oscillating above the threshold. Turned the HV back on, but it failed. Switched to analogue controller at 1:20am, and turned off the pump around 4:30am since it's not working properly. Thank you Amanda and Russet for the help! Other than arctic, everything else went smoothly tonight! the weather was beautiful and we has subarcsecond seeing! No echelle iol for end of night since cals are running. ------- 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 -------------------------------------------------------------------------- 18:03 arctic 353( 1101) -4 54 5.2 7.3 6.4 7.2 6.2 CUVR 0.85 19:49 arctic 242( 912) -42 48 5.1 5.5 5.6 5.5 5.4 CUVR 0.79 00:17 ecamera 299( -121) -8 22 5.7 5.3 6.0 5.2 5.4 ND2 0.98 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 43 19 1 210 (SSW) 966 mstly clr none 17:00 43 11 5 271 (W) 696 mstly clr none 18:00 43 6 5 345 (NNW) 713 clear none 19:00 42 4 0 306 (NW) 646 clear none 20:00 42 1 7 296 (WNW) 603 clear none 21:00 43 0 4 265 (W) 647 clear none 22:00 44 -1 8 262 (W) 682 clear none 23:00 43 -1 9 301 (WNW) 860 clear none 00:00 43 -3 7 269 (W) 808 clear none 01:00 43 -2 9 272 (W) 845 clear none 02:00 42 0 5 259 (W) 801 clear none 03:00 42 4 10 299 (WNW) 796 clear none 04:00 42 8 14 300 (WNW) 834 clear none 05:00 40 4 10 315 (NW) 1052 clear none 06:00 41 8 11 316 (NW) 1209 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: 3.1.5