Apache Point Observatory 3.5m Telescope Night Log Monday, May 25, 2026 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- OU04 N.Vernekar N.Vernekar CU02 A.Stephens Z.Berta-Thompson ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- OU04 ECHELLE --:-- --:-- CU02 KOSMOS --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- OU04/R 20:11 01:10 0 5.0 0 0 0.0 0.0 0 0 CU02/R 01:10 05:49 2.7 1.9 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend At checkout, I had to restart gcam nubs. We had lots of wonderful rain tonight! It did mostly stop raining and we could see a few stars through the clouds after 02:00, but there were too many storms nearby to open still. We stayed closed all night. ------- 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 55 37 36 196 (SSW) 1081 cloudy rain 17:00 49 42 16 114 (ESE) cloudy rain 18:00 45 42 18 173 (S) cloudy rain 19:00 46 32 21 132 (SE) 747 cloudy rain 20:00 45 32 3 256 (WSW) 901 cloudy rain 21:00 45 32 6 2 (N) 727 cloudy rain 22:00 49 32 4 177 (S) 452 cloudy rain 23:00 45 32 6 258 (WSW) 598 cloudy rain 00:00 43 32 13 184 (S) 21635 cloudy rain 01:00 42 31 1 182 (S) cloudy rain 02:00 43 32 7 45 (NE) 841 ptly cldy none 03:00 46 31 5 185 (S) 820 ptly cldy none 04:00 45 32 3 200 (SSW) 712 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