Subject: 3.5m Night Log 20231223 From: dembicky@apo.nmsu.edu Date: Sun, 24 Dec 2023 11:20:25 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, December 23, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM14 J.Jackiewicz D.Chojnowski UW02 P.Yoachim P.Yoachim AP01 S.Merkowitz R.McMillan OU04 K.Leighly K.Leighly, D.Terndrup ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM14 ECHELLE --:-- --:-- UW02 KOSMOS --:-- --:-- AP01 APOLLO --:-- --:-- OU04 TSPEC --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM14/R 17:11 22:30 0 5.3 0 0 0.0 0.0 0 0 UW02/R 22:30 00:10 0 1.7 0 0 0.0 0.0 0 0 AP01/R 00:10 01:10 0 1.0 0 0 0.0 0.0 0 0 OU04/R 01:10 06:54 1.9 3.8 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky We got about 1 inch or so of (now) wet snow during the daytime. There is still some snow on the rooftop, so we will at least have a 15mph wind restriction, if I do decide it is safe to open at all tonight. At 15:30 we are still completely cloudy, below freezing temps (-1C), little sunshine ooutside to melt ice/snow, high humidity, and now (ice) fog! I don't want ice chunks falling on the telescope. gcam needed a nubs restart We had high humidity all night and fog/clouds after about 22:00, which kept us closed for the rest of the night. I closed up for the night at 04:15 under cloudy skies and almost 99% humidity. I loaded 3 new dewars onto the carts for Russet, they are on the echelle side by the other dewars. Enclosure door is locked since nobody will be on site during the daytime. ------- 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 30 31 18 239 (WSW) cloudy fog 17:00 29 29 21 262 (W) cloudy humid 18:00 28 28 17 258 (WSW) cloudy humid 19:00 27 26 14 264 (W) mstly cldy humid 20:00 26 26 11 299 (WNW) clear humid 21:00 26 25 8 323 (NW) clear humid 22:00 26 26 14 307 (NW) cloudy fog 23:00 25 26 11 273 (W) cloudy fog 00:00 25 25 16 306 (NW) cloudy humid 01:00 25 25 9 306 (NW) cloudy humid 02:00 25 25 20 331 (NNW) cloudy humid 03:00 25 25 2 40 (NE) cloudy humid 04:00 25 24 8 352 (N) cloudy humid 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: 3.1.3