Subject: 3.5m Night Log 20250405 From: dembicky@apo.nmsu.edu Date: Sun, 6 Apr 2025 11:53:47 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, April 05, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW09 P.Szkody P.Szkody NA01 J.Barry J.Barry ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW09 KOSMOS --:-- --:-- NA01 TSPEC --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW09/R 19:35 01:10 0 5.6 0 0 0.0 0.0 0 0 NA01/R 01:10 06:36 3.0 2.4 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Setting the kosmos slit seemed to be working fine tonight. No pink after a move to a different slit unlike last night. Clouds and high humidity to start the night. The clouds cleared out around 01:00 but the humidity never dropped. No snow at all from the big storm we were supposed to get. I gave up for the night at 05:50 with humidity still over the limit. ------- 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 22 17 17 39 (NE) cloudy humid 17:00 20 15 20 53 (NE) cloudy humid 18:00 17 15 15 60 (ENE) cloudy humid 19:00 17 15 10 62 (ENE) cloudy humid 20:00 17 15 17 74 (ENE) cloudy humid 21:00 17 16 18 73 (ENE) cloudy humid 22:00 17 16 18 74 (ENE) cloudy humid 23:00 17 16 15 80 (E) cloudy humid 00:00 17 15 14 56 (NE) mstly clr humid 01:00 17 16 13 59 (ENE) clear humid 02:00 18 17 6 43 (NE) clear humid 03:00 19 17 8 14 (NNE) clear humid 04:00 19 17 3 9 (N) clear humid 05:00 20 16 9 6 (N) clear 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: 3.1.8