Subject: 3.5m Night Log 20250714 From: ajt@apo.nmsu.edu Date: Tue, 15 Jul 2025 14:54:55 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, July 14, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- EN02 B.Ketzeback A.Townsend,R.McMillan ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- EN02 ARCTIC 22:25 02:00 EN02 SHACK 02:00 04:00 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- EN02/R 20:21 01:10 2.0 0 0 0 0.5 2.3 0 0 EN02/R 01:10 05:58 0 0 0 0 0.0 4.8 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend Sky surprisingly cleared up enough for some on-sky shutdown recovery engineering! Engineering tasks completed: - Recovery from hub restart today, fixed tert rot ? and reset gcam temp to -5 - Axes resets, zeroed NA2 rotator (-0.037) - 2x2" arctic filter flat tests - ARCTIC window tests odd vs even size - Rough pointing check with ARCTIC, off about -54" alt 36" az. - Pointing check with gcam and na2tilts scripts testing - gcam may need inst block (star does not center up correctly with offset) - Course primary hardpoint collimation - Tert rot to TR4 for Shack failed with normal ?LMSTOP error. - Fine collimation with Shack - 20-point pointing model at the end of the night, - Multiple echelle IOL measurements; no issues with new icc tonight! During shack observations we had an internet interruption, I was disconnected from TUI and my ssh sessions on obsA. Motion error 04:15 43 alt slewing downward, again 4:19 in NE at 24.4 EN02 NA2GDR 04:00 05:30 ------- 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 -------------------------------------------------------------------------- 02:23 shack 140( 1679) 152 56 12.3 12.5 13.0 12.2 12.1 -- 1.20 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 57 40 8 357 (N) 428 mstly cldy none 17:00 62 37 9 200 (SSW) 568 mstly cldy none 18:00 60 42 4 127 (SE) 924 mstly cldy none 19:00 60 46 5 141 (SE) 958 mstly clr none 20:00 57 50 10 111 (ESE) mstly clr humid 21:00 57 47 14 119 (ESE) mstly clr humid 22:00 58 46 14 138 (SE) 1345 mstly clr none 23:00 58 44 9 174 (S) 1233 mstly clr none 00:00 59 43 11 184 (S) 1056 mstly clr none 01:00 55 46 5 175 (S) 1326 mstly clr none 02:00 57 45 6 186 (S) clear none 03:00 57 45 6 217 (SW) 1245 clear none 04:00 57 44 6 189 (S) 1229 mstly clr none 05:00 57 44 7 217 (SW) 1205 mstly clr none 06:00 55 43 7 244 (WSW) 1192 mstly clr 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: 3.1.8