Subject: 3.5m Night Log 20250305 From: tsutherland@apo.nmsu.edu Date: Thu, 6 Mar 2025 12:08:27 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, March 05, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM02 C.Gray C.Gray AP01 S.Merkowitz R.McMillan,T.Sutherland.N.Calmenares,E.Hoffman OU02 M.Kilic G.Jewett ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM02 Echelle 18:12 20:14 AP01 APOLLO 20:19 22:23 OU02 KOSMOS 23:16 01:58 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM02/R 18:12 20:20 0 0 0 0 0.0 2.1 0 0 AP01/R 20:20 23:40 0 1.3 0 0 0.0 2.0 0 0 OU02/R 23:40 06:16 4.3 0 0 0 0.9 1.4 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland,C.Gray Kinda cloudy at the start of the night, which only got worse as the night went on. Thanks Candace for helping with Apollo troubles. The keyswitch box kept turning off and causing the shutter to close, thus stopping the laser from coming out. See PR 2237 for more info. AP01 called it quits due to clouds at 10:23pm. Closed up at 1:58am due to excessive clouds. Gave up around 5am for the night. ------- 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 -------------------------------------------------------------------------- 18:29 ecamera 370( 15) 269 19 6.3 6.6 6.5 6.4 6.1 ND2 1.25 19:41 ecamera 279( -141) 250 37 4.2 5.5 6.0 5.5 5.1 ND2 2.08 20:24 APOLLO 250( 1562) 284 51 4.8 4.8 5.3 4.7 4.5 -- 2.25 22:50 kosmos 275( 776) 255 78 5.7 4.5 5.0 4.6 5.0 -- 0.98 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 8 11 188 (S) 887 ptly cldy none 17:00 44 9 7 196 (SSW) 1196 ptly cldy none 18:00 43 -8 11 214 (SW) 151 ptly cldy none 19:00 44 -9 9 192 (SSW) 371 ptly cldy none 20:00 40 -4 13 175 (S) 972 ptly cldy none 21:00 41 -9 7 184 (S) 979 ptly cldy none 22:00 42 5 21 180 (S) 2319 mstly cldy none 23:00 43 2 16 187 (S) 2954 mstly cldy none 00:00 43 4 22 186 (S) 3958 mstly cldy none 01:00 42 1 25 199 (SSW) 2954 cloudy none 02:00 42 2 20 215 (SW) 3021 cloudy none 03:00 42 1 18 208 (SSW) 3340 cloudy none 04:00 43 2 19 199 (SSW) 3335 cloudy 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