Subject: 3.5m Night Log 20250322 From: tsutherland@apo.nmsu.edu Date: Sun, 23 Mar 2025 13:12:06 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, March 22, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH04 C.Ingebretsen C.Ingebretsen OU01 G.Jewett G.Jewett NM08 T.McQuaid T.McQuaid AP02 S.Merkowitz R.McMillan,T.Sutherland ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH04 ARCTIC --:-- --:-- OU01 ARCTIC --:-- --:-- NM08 ECHELLE 01:20 05:54 AP02 APOLLO 05:58 06:50 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH04/R 19:25 21:25 2.0 0 0 0 0 0.0 0 0 OU01/R 21:25 01:10 3.8 0 0 0 0 0.0 0 0 NM08/R 01:10 05:54 0.2 0 0 0 1.9 2.6 0 0 AP02/R 05:54 06:54 0 0 0 0 0.0 1.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland,J.Dembicky Nicfps was all 0s at checkout. Thanks Jack for helping recover it. Restarted the arctic filter wheel at the start of JH04. Restarted dataq at 9pm. Dust from start of night until 1:20am when I opened. ------- 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 -------------------------------------------------------------------------- 01:30 ecamera 428( 54) 185 76 6.6 7.0 9.3 6.9 6.3 clear 0.95 06:03 APOLLO 350( 1676) 28 25 4.7 4.6 5.3 4.8 4.8 -- 1.80 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 9 19 260 (W) 1125 clear none 17:00 52 5 13 268 (W) 1680 clear none 18:00 54 5 24 263 (W) 3052 clear dust 19:00 50 4 27 257 (WSW) 4159 mstly clr dust 20:00 48 4 26 265 (W) 6524 mstly clr dust 21:00 46 3 23 267 (W) 3017 clear dust 22:00 46 4 19 270 (W) 10733 clear dust 23:00 45 6 25 282 (WNW) 9308 clear dust 00:00 45 6 23 296 (WNW) 6888 clear dust 01:00 44 8 19 281 (W) 2946 clear none 02:00 44 11 13 280 (W) 2405 mstly clr none 03:00 42 12 11 273 (W) 2306 ptly cldy none 04:00 42 12 10 276 (W) 1059 ptly cldy none 05:00 42 13 16 322 (NW) 735 mstly cldy none 06:00 41 15 21 308 (NW) 763 mstly 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: 3.1.8