Subject: 3.5m Night Log 20251103 From: dembicky@apo.nmsu.edu Date: Tue, 4 Nov 2025 13:24:46 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Monday, November 03, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UV03 J.Davidson J.Davidson AP01 S.Merkowitz R.McMillan, T.Sutherland GS03 T.Henry J.Davidson, T.Sutherland ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UV03 DSSI 17:19 00:04 AP01 APOLLO 00:06 01:04 GS03 DSSI 01:08 01:15 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UV03/R 17:19 00:10 0 0 0 0 0.0 6.9 0 0 AP01/R 00:10 01:10 0 0 0 0 0.0 1.0 0 0 GS03/R 01:10 06:15 0 0 0 0 0.9 4.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky ObsA TUI disconnected at 10:14:54 2025-11-04 10:14:54 .tui 0 tui Text='No data seen in 60.0 seconds; testing the connection' 2025-11-04 10:14:54 .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]" 2025-11-04 10:14:54 CmdStarted: MN01.telmech-mon 756 telmech status shutters 2025-11-04 10:14:55 APO.Jack-ObsA 100 KeyDispatcher f Aborted; Actor='hub'; Cmd='version'; Text="disconnected" I simply re-logged in and all was fine. No telescope issues tonight. ------- 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 -------------------------------------------------------------------------- 17:44 dssi 600( 1716) 16 70 10.9 13.2 13.6 12.7 11.2 692nm 1.10 00:09 APOLLO 400( 1742) -54 75 10.9 10.0 10.6 10.0 10.6 -- 0.90 01:20 dssi 385( 1363) 34 51 10.2 10.0 10.6 10.0 10.1 -- 0.90 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 58 23 9 226 (SW) 673 clear none 17:00 54 23 8 186 (S) 494 clear none 18:00 51 22 12 159 (SSE) 469 clear none 19:00 50 22 6 149 (SSE) 549 clear none 20:00 52 21 12 191 (S) 866 clear none 21:00 50 20 8 175 (S) 690 clear none 22:00 51 20 13 186 (S) 428 clear none 23:00 51 22 13 214 (SW) 338 clear none 00:00 52 20 10 244 (WSW) 1033 clear none 01:00 51 19 8 233 (SW) 901 clear none 02:00 51 18 6 256 (WSW) 653 clear none 03:00 51 20 8 267 (W) 595 clear none 04:00 51 20 7 269 (W) 677 clear none 05:00 51 21 6 261 (W) 1043 clear none 06:00 50 22 6 267 (W) 1103 clear 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