Apache Point Observatory 3.5m Telescope Night Log Wednesday, October 14, 2026 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM01 J.Jackiewicz J.Jackiewicz,C.Mankowski UW01 P.Yoachim Z.Xu,Z.Liu,D.Meng WY01 M.Moe S.Dandu ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM01 ECHELLE 18:40 21:02 UW01 KOSMOS 22:03 01:10 WY01 ECHELLE 01:14 06:11 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM01/R 18:40 22:10 0 0 0 0 0.6 2.3 0.6 0 UW01/R 22:10 01:10 0 0 0 0 3.0 0.0 0 0 WY01/R 01:10 06:59 0 0 0 0 5.8 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Sutherland Many computers needed to be logged back into and the mirror covers reset after the scheduled power outage today. Recovery was just fine. Beautiful weather at the start of the night. Opened before sunset to start venting. Cals were running until 19:28 and we got on sky moments after they finished cals. NM01 finished early and yielded about an hour to UW01. UW01 did not log in until a couple minutes before their scheduled time. I focused Kosmos in the meantime. TUI disconnected from ObsA at 6:05am. Was able to reconnect immediately. Perfectly clear weather 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 -------------------------------------------------------------------------- 19:33 ecamera 472( 24) 183 76 9.3 9.8 9.8 9.1 8.9 clear 0.97 21:25 kosmos 397( 892) 234 78 9.0 8.6 9.1 8.4 8.6 -- 1.08 01:19 ecamera 326( -235) 10 72 8.6 7.3 8.1 7.2 7.8 clear 0.93 03:06 ecamera 334( -152) -34 66 9.9 8.9 9.3 8.8 9.4 clear 0.94 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 54 41 19 214 (SW) 312 mstly clr none 17:00 57 42 18 229 (SW) 305 mstly clr none 18:00 53 41 13 266 (W) 341 mstly clr none 19:00 49 40 14 264 (W) clear none 20:00 49 41 11 265 (W) clear none 21:00 48 41 13 265 (W) clear none 22:00 47 41 9 276 (W) clear none 23:00 48 39 14 271 (W) clear none 00:00 46 35 12 279 (W) 449 clear none 01:00 47 22 12 284 (WNW) 225 clear none 02:00 50 14 10 263 (W) 131 clear none 03:00 50 7 10 266 (W) 119 clear none 04:00 50 12 2 188 (S) 137 clear none 05:00 50 14 12 184 (S) 173 clear none 06:00 48 16 6 193 (SSW) 160 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: 3.2.2