Subject: 3.5m Night Log 20250329 From: ajt@apo.nmsu.edu Date: Sun, 30 Mar 2025 13:09:27 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, March 29, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM04 M.Croom M.Croom NM10 N.Chanover R.McMillan,A.Townsend,M.Croom NM04 M.Croom M.Croom JH08 K.Schlaufman K.Schlaufman,P.McCreery ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM04 KOSMOS --:-- --:-- NM10 AGILE 22:47 23:06 NM04 KOSMOS 23:10 00:17 JH08 ECHELLE 01:34 06:02 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM04/R 19:30 22:47 2.7 0.6 0 0 0.0 0.0 0 0 NM10/W/D 22:47 23:06 0 0 0 0 0.3 0.0 0 0 NM04/R 23:06 01:10 1.1 0 0 0 1.0 0.0 0 0 JH08/R 01:10 06:45 0.4 0 0 0 5.2 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend, R.McMillan Restarted gcam nub at checkout. Restarted software on omea computer. Swapped echelle LN2 fill hose. Zeroed agile rotator, reset axis controller, restarted TCC because it couldn't connect to the agile rotator and got into an unhappy state. Restarted agile heartbeat. Agile engineering had mixed results; we were able to take exposures but there are still some kinks to work out. See PR 2241, PR 2242, and Russet's agile engineering email. Multiple observers tonight reported TUI 3.1.8 on MacOS 15 freezing up and/or crashing tonight. Clouds varied from completely overcast to almost clear, but the bigger problem we had was dust. This kept us closed most of A-half, and we did some agile checkout and troubleshooting. We spent a few minutes to checkout out agile on sky once the dust came down and then turned the telescope back over to NM04. We got another hour on sky before the dust spiked again. Most of B-half the dust counts were elevated but stayed under the limit. ------- 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 -------------------------------------------------------------------------- 23:05 clumsy 350(-1194) 63 57 5.8 6.0 6.6 6.0 5.8 SDSS_r 1.47 23:18 khigh 385( 954) 87 70 5.8 5.8 6.5 5.7 5.4 -- 1.18 01:38 ecamera 357( -128) 167 83 5.1 4.7 5.5 4.7 4.6 ND3 1.22 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 21 21 255 (WSW) 1747 cloudy none 17:00 45 19 22 251 (WSW) 3837 cloudy dust 18:00 48 14 28 259 (W) 20374 ptly cldy dust 19:00 47 14 33 262 (W) 8463 mstly clr dust 20:00 45 12 29 270 (W) 7692 mstly clr dust 21:00 45 10 22 268 (W) 8387 mstly clr dust 22:00 44 11 23 275 (W) 5565 mstly clr dust 23:00 43 10 26 269 (W) 3257 mstly clr dust 00:00 41 10 22 284 (WNW) 3129 mstly cldy dust 01:00 41 9 18 264 (W) 4095 mstly cldy dust 02:00 40 11 21 268 (W) 2046 ptly cldy none 03:00 39 11 16 283 (WNW) 2626 mstly clr none 04:00 39 10 7 266 (W) 3192 ptly cldy dust 05:00 38 7 13 279 (W) 3614 ptly cldy dust 06:00 37 8 15 299 (WNW) 3610 ptly cldy 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: 3.1.8