Subject: 3.5m Night Log 20250420 From: dembicky@apo.nmsu.edu Date: Mon, 21 Apr 2025 12:15:04 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, April 20, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM04 P.Holguin P.Holguin WY02 C.Kobulnicky N.Patten, S.Kanodia, L.Boone ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM04 KOSMOS 19:46 01:08 WY02 ARCTIC 01:20 05:55 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM04/R 19:46 01:10 0 0 0 0 5.4 0.0 0 0 WY02/R 01:10 06:18 0 0 0 0 1.5 3.7 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky No problems tonight. Nice and clear with good seeing. ------- 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 -------------------------------------------------------------------------- 20:42 kosmos 271( 848) 133 74 5.9 6.0 6.1 5.6 5.6 -- 0.74 01:26 arctic 264( 831) 283 66 5.4 3.6 4.4 3.3 4.2 SDSS_g 0.98 01:27 NA2gdr 36671(36671) 282 66 5.4 3.6 4.4 3.3 4.2 Clear 1.12 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 14 7 30 (NNE) 471 clear none 17:00 47 14 16 302 (WNW) 439 clear none 18:00 46 10 8 351 (N) 476 clear none 19:00 44 10 8 313 (NW) 548 clear none 20:00 42 6 1 40 (NE) 603 clear none 21:00 42 10 9 18 (NNE) 580 clear none 22:00 41 9 6 3 (N) 623 clear none 23:00 42 8 1 331 (NNW) 625 clear none 00:00 40 9 2 325 (NW) 467 clear none 01:00 41 10 1 213 (SSW) 449 clear none 02:00 44 10 5 97 (E) 516 clear none 03:00 42 10 6 133 (SE) 565 clear none 04:00 44 11 1 158 (SSE) 566 clear none 05:00 44 11 2 188 (S) 469 clear none 06:00 42 11 10 151 (SSE) 540 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: 3.1.8