Subject: 3.5m Night Log 20191219 From: trudyk@apo.nmsu.edu Date: Fri, 20 Dec 2019 13:23:20 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Thursday, December 19, 2019 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- GS01 D.Michael M.Crenshaw,B.Meena,G.Polack NA01 A.Jaskot A.Jaskot,N.Ford ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- GS01 Arctic 17:09 00:00 NA01 DIS 00:10 06:23 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- GS01/O 17:09 00:10 0 0 0 0 7.0 0.0 0 0 NA01/O 00:10 06:52 0 0 0 0 0.9 5.8 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Rudyk Evening started clear and calm. Seeing was so-so. Around 02:15 winds shifted, and seeing took a suddent nosedive, going from 1.5" to 4" in a matter of minutes. Wind kept bouncing between north and east, with the seeing varying reapidly. Seeing got better after 3am, returning to 'normal' levels for the night (~1.5"). Wind picked up around 3am as well, but did not pass safe limits. We were open 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 -------------------------------------------------------------------------- 17:56 arctic 438( 400) 31 54 -1.9 0.1 0.2 -0.2 -1.3 J-C_I 1.29 18:01 arctic 396( 349) 29 55 -1.9 -0.0 0.1 -0.4 -1.4 CU_h_alpha 1.47 18:55 arctic 499( 390) -49 47 -2.3 -1.5 -1.2 -2.1 -2.2 JC_I 1.56 19:53 arctic 575( 399) -55 50 -3.3 -2.8 -2.1 -2.9 -3.0 JC_I 1.55 21:27 arctic 446( 210) 144 62 -3.8 -4.0 -3.3 -4.2 -3.9 JC_B 1.53 00:14 dcamera 525( 89) 203 67 -4.1 -4.3 -3.8 -4.2 -3.9 - 1.42 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 34 13 7 259 (W) 203 clear none 17:00 30 15 9 223 (SW) 366 clear none 18:00 29 14 12 242 (WSW) 290 clear none 19:00 28 15 12 235 (SW) 314 clear none 20:00 26 15 14 247 (WSW) 375 clear none 21:00 25 14 7 264 (W) 466 clear none 22:00 24 13 7 325 (NW) 447 clear none 23:00 24 14 13 335 (NNW) 445 clear none 00:00 26 10 9 351 (N) 351 clear none 01:00 24 7 13 21 (NNE) 287 clear none 02:00 24 10 14 31 (NNE) 403 clear none 03:00 23 8 18 37 (NE) 363 clear none 04:00 24 -1 24 22 (NNE) 193 clear none 05:00 25 -8 17 31 (NNE) 114 clear none 06:00 29 -11 29 26 (NNE) 66 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: 1.2.4 Current HUB version: v20171231_01 Current TUI version: 2.6.0