Subject: 3.5m Night Log 20250317 From: dembicky@apo.nmsu.edu Date: Tue, 18 Mar 2025 13:12:51 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, March 17, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM03 A.Peck A.Peck,E.Nielsen UW01 P.Yoachim Z.Xu, Z.Liu UV02 S.Majewski J.Davidson, E.Horch, A.Heil, Students ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM03 ECHELLE 19:45 22:36 UW01 KOSMOS --:-- --:-- UV02 DSSI 05:10 07:01 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM03/R 19:21 22:40 0.4 0 0 0 2.8 0.1 0 0 UW01/R 22:40 01:10 0 2.5 0 0 0.0 0.0 0 0 UV02/O 01:10 07:01 0 4.0 0 0 0.0 1.8 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky I gave a tour for the visiting students with UVA this afternoon. ARCTIC seemed to have some odd image problems with its bias frames. There was a dark to light smooth gradient from the top to center and then back to dark at the bottom. I had to do an init to fix it and of course lost a quad in the process. Delayed slightly at start of the night due to uncertain clouds/dust levels. I finally did open about 20 mins after sunset. Dust remained elevated but not over the closure limits. Clouds got worse as the first half went on. ARCTIC quad recovery while we were closed due to clouds. I was able to recover at 200K by leaving it set there for 30 mins then doing the recovery. Cloouds finally parted enought that I felt comfortable opening at 05:10 06:09 TUI disconnected on ObsA. I just needed to re-connect. Didn't seem to disconnect anyone else. 2025-03-18 12:08:58 .tui 0 tui Text='No data seen in 60.0 seconds; testing the connection' 2025-03-18 12:08:58 .tui 0 tui Failed; Text="[Failure instance: Traceback (failure with no frames): : Connection to the other side was lost in a non-clean fashion.\n]" 2025-03-18 12:08:59 CmdStarted: MN01.telmech-mon 317 telmech status shutters 2025-03-18 12:08:59 APO.Jack-ObsA 236 KeyDispatcher f Aborted; Actor='hub'; Cmd='version'; Text="disconnected" We may still be having issues with ARCTIC. I will talk to Carey about it before I go to bed. ------- 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 -------------------------------------------------------------------------- 05:27 dssi -37( 948) 224 81 5.1 6.2 6.8 6.2 5.1 692 1.20 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 8 22 201 (SSW) 1618 ptly cldy none 17:00 57 7 21 205 (SSW) 1945 ptly cldy none 18:00 53 4 18 216 (SW) 2696 mstly cldy none 19:00 51 7 17 198 (SSW) 3240 ptly cldy none 20:00 50 8 18 222 (SW) 3166 ptly cldy none 21:00 51 8 18 233 (SW) 3487 mstly cldy none 22:00 51 9 16 252 (WSW) 2866 mstly cldy none 23:00 50 8 16 217 (SW) 2879 cloudy none 00:00 49 9 12 225 (SW) 13267 cloudy dust 01:00 48 8 23 226 (SW) 2594 cloudy none 02:00 47 7 20 219 (SW) 1822 cloudy none 03:00 45 6 19 233 (SW) 1704 mstly cldy none 04:00 43 6 24 237 (WSW) 1783 mstly cldy none 05:00 41 8 20 216 (SW) 1947 mstly clr none 06:00 41 11 21 213 (SSW) 2015 ptly 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