Subject: 3.5m Night Log 20200226 From: trudyk@apo.nmsu.edu Date: Thu, 27 Feb 2020 13:14:06 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, February 26, 2020 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- WY01 M.Brotherton J.McLane JH04 H.Reggiani H.Reggiani CU08 A.Youngblood A.Youngblood ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- WY01 TSPEC 18:06 19:38 JH04 ECHELLE 19:42 00:06 CU08 TripleSpec 00:15 06:06 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- WY01/R 18:06 19:46 0 0 0 0 0.0 1.7 0 0 JH04/R 19:46 00:10 0 0 0 0 3.3 1.1 0 0 CU08/R 00:10 06:25 0 0 0 0 6.2 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Rudyk During checkout NA2 rotator did not move initially. Required a tcc rot init to get it moving. Evening started clear, a little on the windy side. Winds subsided after sunset. It stayed clear with decent seeing. Winds were a bit high from the north. It caused an atitude error at 00:10 which was quickly fixed by running the scope over the MS sensors to reset alt. Fortunately this was all done during changeover, no time was technically lost. Around 02:25 the NA2 rotator stopped working. Another "tcc init rot" quickly got it moving. We stayed 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 -------------------------------------------------------------------------- 18:14 tcamera 536( 576) 131 59 -3.2 -2.4 -3.0 -3.0 -3.1 - 1.11 19:48 ecamera 425( -888) -155 67 -3.2 -3.4 -3.0 -3.4 -3.1 clear 1.65 20:21 ecamera 421( -895) -33 63 -3.3 -3.5 -3.1 -3.5 -3.2 clear 1.18 22:09 ecamera 437( -871) -87 66 -2.3 -3.3 -2.7 -3.1 -2.5 clear 1.09 00:19 tcamera 383( 397) -4 62 -2.6 -2.9 -2.4 -2.8 -2.6 - 1.00 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 22 0 4 355 (N) 341 clear none 17:00 24 -1 2 357 (N) 323 clear none 18:00 26 -17 8 17 (NNE) 202 clear none 19:00 26 -20 16 30 (NNE) 249 clear none 20:00 26 -17 22 6 (N) 296 clear none 21:00 26 -12 27 21 (NNE) 392 clear none 22:00 28 -5 16 4 (N) 214 clear none 23:00 28 -4 24 3 (N) 269 clear none 00:00 27 -2 19 23 (NNE) 290 clear none 01:00 28 -3 20 16 (NNE) 235 clear none 02:00 27 0 25 23 (NNE) 242 clear none 03:00 27 4 18 4 (N) 234 clear none 04:00 27 5 23 32 (NNE) 191 clear none 05:00 28 7 11 77 (ENE) 178 clear none 06:00 29 8 23 20 (NNE) 135 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