Subject: 3.5m Night Log 20250312 From: cgray@apo.nmsu.edu Date: Thu, 13 Mar 2025 12:43:13 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, March 12, 2025 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- JH01 B.Menard B.Menard and class EN01 B.Ketzeback C.Gray ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- JH01 Echelle 19:18 19:58 JH01 NICFPS 20:00 22:45 JH01 KOSMOS 22:57 02:06 EN01 ARCTIC 02:20 06:35 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- JH01/R 19:18 02:10 0 0 0 0 0.0 6.9 0 0 EN01/R 02:10 07:07 0 0 0 0 0.0 4.9 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray az alt focus um The night started clear with good seeing. We started off with some echelle practice to finish off training for one JH01 observer while the students used nicfps and kosmos. About an hour of engineering time was donated to the class to finish off an observation and collect dome calibration. The clouds started increases after midnight and the humidity got up to 70%, but then there was a wind shift and things dried back out. For engineering, I did arctic focus vs test for an altitude range of about 10 - 80. I was able to make three runs of it about every 10 degrees. I also ran a bunch of echelle flats to test the shift in the orders to see how it changes over the course of the night. However, I'm a bit fried after training so I'll put together the engineering email tomorrow. No problems tonight. ------- 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 -------------------------------------------------------------------------- 20:30 NICFPS 482( 1350) 282 79 2.1 1.6 3.1 2.3 2.0 Mk-J 1.02 21:18 NICFPS 367( 1229) 121 45 1.7 1.1 2.3 1.3 1.4 Mk-J 1.16 23:13 kosmos 307( 624) -31 75 1.6 0.5 1.4 0.5 1.1 -- 0.91 03:00 arctic 280( 691) 16 82 1.3 0.4 1.3 0.7 0.7 sdss-i 1.21 03:12 arctic 278( 700) -1 57 1.2 0.4 1.2 0.6 0.9 sdss-i 1.43 03:17 arctic 297( 730) -3 42 1.4 0.4 1.2 0.5 1.0 sdss-i 1.56 03:22 arctic 284( 730) -3 27 1.4 0.4 1.3 0.5 1.1 sdss-i 2.09 03:39 arctic 329( 777) -7 22 1.1 0.3 1.2 0.5 0.9 sdss-i 2.01 03:44 arctic 241( 694) -8 17 1.2 0.3 1.2 0.5 0.8 sdss-i 2.55 03:49 arctic 279( 737) -2 12 1.0 0.3 1.2 0.5 0.9 sdss-i 2.79 04:06 arctic 351( 797) -6 21 1.2 0.3 1.2 0.4 0.9 sdss-i 2.77 04:11 arctic 296( 731) -3 32 1.0 0.2 1.1 0.4 0.8 sdss-i 2.68 04:16 arctic 349( 776) -5 42 1.2 0.3 1.1 0.4 0.8 sdss-i 2.07 04:22 arctic 319( 737) -8 52 1.0 0.3 1.1 0.5 0.8 sdss-i 1.65 04:27 arctic 319( 731) -14 61 0.9 0.2 1.1 0.5 0.8 sdss-i 1.47 04:39 arctic 320( 723) -49 78 1.2 0.2 1.1 0.5 0.7 sdss-i 1.29 04:45 arctic 317( 720) -8 82 0.9 0.2 1.1 0.5 0.7 sdss-i 1.03 04:50 arctic 316( 721) -3 72 0.9 0.2 1.1 0.4 0.6 sdss-i 1.16 04:56 arctic 321( 729) -4 62 0.9 0.2 1.0 0.3 0.6 sdss-i 1.17 05:04 arctic 297( 710) -4 53 1.0 0.2 1.0 0.2 0.5 sdss-i 1.72 05:21 arctic 307( 731) -5 42 1.8 0.3 1.0 0.4 1.2 sdss-i 1.69 05:30 arctic 323( 762) -5 32 2.5 0.4 1.1 0.6 1.5 sdss-i 1.97 05:40 arctic 331( 785) -4 22 2.6 0.5 1.3 0.8 1.8 sdss-i 2.19 05:49 arctic 390( 858) -4 12 2.7 0.5 1.4 0.8 1.8 sdss-i 2.79 05:57 arctic 342( 802) -1 22 2.9 0.7 1.5 1.0 2.0 sdss-i 2.02 06:04 arctic 341( 798) -1 32 2.8 0.7 1.6 1.2 2.2 sdss-i 1.44 06:09 arctic 335( 782) -3 41 2.9 0.7 1.7 1.3 2.1 sdss-i 1.57 06:18 arctic 335( 780) -5 52 2.8 0.8 1.8 1.5 2.2 sdss-i 1.11 06:22 arctic 332( 773) -6 62 3.0 0.9 1.8 1.6 2.3 sdss-i 1.03 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 39 23 20 269 (W) 2707 clear none 17:00 39 21 9 261 (W) 1123 clear none 18:00 40 21 8 273 (W) 1088 clear none 19:00 39 24 18 265 (W) 880 clear none 20:00 37 26 13 236 (SW) 1108 clear none 21:00 34 25 11 249 (WSW) mstly clr none 22:00 35 26 7 259 (W) mstly clr none 23:00 35 25 10 267 (W) mstly clr none 00:00 36 24 9 258 (WSW) 305 ptly cldy none 01:00 36 21 7 260 (W) 257 ptly cldy none 02:00 35 23 9 276 (W) 331 ptly cldy none 03:00 34 23 9 346 (NNW) 364 ptly cldy none 04:00 34 24 12 338 (NNW) ptly cldy none 05:00 34 25 14 317 (NW) ptly cldy none 06:00 37 14 17 272 (W) 615 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