Apache Point Observatory 3.5m Telescope Night Log Thursday, October 15, 2026 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- AP01 S.Merkowitz R.McMillan,T.Sutherland JH07 R.Vervack A.McKay WY02 M.Brotherton M.Brotherton,K.Zhang JH04 P.McCreery K.Schlaufman ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- AP01 APOLLO --:-- --:-- JH07 ECHELLE --:-- --:-- WY02 KOSMOS --:-- --:-- JH04 ECHELLE --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- AP01/W 18:38 19:53 0 1.3 0 0 0.0 0.0 0 0 JH07/R 19:53 01:10 3.4 1.9 0 0 0.0 0.0 0 0 WY02/R 01:10 03:10 2.0 0 0 0 0.0 0.0 0 0 JH04/R 03:10 07:00 3.8 0 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Townsend ARCTIC LL quad recovered by 21:00. Super windy all night long. Gusts up to about 65mph. We had a lot of little power flickers and a couple times where the network connection seemed to go out, but we stayed on utility power. We also had some fog and hit freezing temperatures outside tonight! We did not open. ------- 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 57 33 12 224 (SW) 363 mstly clr none 17:00 49 29 20 70 (ENE) 691 mstly clr none 18:00 46 27 20 85 (E) 228 mstly clr none 19:00 43 32 17 95 (E) 1087 mstly clr none 20:00 41 34 37 73 (ENE) ptly cldy humid 21:00 39 34 33 73 (ENE) ptly cldy humid 22:00 38 32 29 69 (ENE) ptly cldy humid 23:00 35 31 40 72 (ENE) ptly cldy humid 00:00 33 31 46 69 (ENE) ptly cldy humid 01:00 31 29 26 70 (ENE) ptly cldy fog 02:00 30 29 30 69 (ENE) cloudy fog 03:00 29 28 57 70 (ENE) cloudy fog 04:00 28 24 48 77 (ENE) cloudy fog 05:00 28 24 43 69 (ENE) cloudy humid 06:00 28 24 38 76 (ENE) 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: 3.2.2