Subject: 3.5m Night Log 20250315 From: dembicky@apo.nmsu.edu Date: Sun, 16 Mar 2025 12:15:35 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, March 15, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UV02 S.Majewski J.Davidson, A.Heil, E.Horch, Students AP02 S.Merkowitz R.McMillan , T.Sutherland UV02 S.Majewski J.Davidson, A.Heil, E.Horch, Students ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UV02 DSSI --:-- --:-- AP02 APOLLO --:-- --:-- UV02 DSSI --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UV02/O 19:20 00:10 1.3 3.5 0 0 0.0 0.0 0 0 AP02/O 00:10 01:10 0 1.0 0 0 0.0 0.0 0 0 UV02/O 01:10 07:03 0 5.9 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Wind restrictions of 15MPH tonight. We never opened due to clouds, humidity, and windy conditions all night. Telescope parked due south to help melt remaining snow on enclosure. ------- 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 -------------------------------------------------------------------------- ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 23 21 13 289 (WNW) mstly cldy lt snow 17:00 23 21 16 335 (NNW) mstly cldy humid 18:00 27 18 15 289 (WNW) mstly cldy none 19:00 25 17 15 289 (WNW) mstly cldy none 20:00 25 17 12 277 (W) ptly cldy none 21:00 25 16 17 306 (NW) ptly cldy none 22:00 24 15 14 281 (W) mstly clr none 23:00 23 14 7 331 (NNW) mstly clr none 00:00 22 16 8 35 (NE) clear none 01:00 22 16 20 14 (NNE) clear none 02:00 22 15 11 355 (N) clear none 03:00 22 14 9 12 (NNE) clear none 04:00 22 14 26 17 (NNE) clear none 05:00 22 14 12 355 (N) clear none 06:00 22 13 19 18 (NNE) 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