Subject: 3.5m Night Log 20190403 From: mcmillan@apo.nmsu.edu Date: Thu, 4 Apr 2019 12:30:02 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, April 03, 2019 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- N.Chanover M.Varakian,N.Chanover DIS 19:58 01:09 T.X.Thuan Y.Izotov DIS 01:13 06:05 INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- NM04/R 19:33 01:10 0.3 0 0 0 5.3 0.0 0 0 UV06/R 01:10 06:39 0 0 0 0 5.5 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan Borderline winds and dust delayed opening just a little after sunset, but not much. After that the skies were clear but seeing was meh and we had occasional windshake issues. Naturally all the interesting fields were in the west, and the wind helpfully shifted a little north or south as needed to make sure it stayed aligned with the best science. There was one overcurrent, with wind only reported around 25 mph, but otherwise we were able to get through. ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 20:08 dcamera 659( 834) -31 56 5.8 7.3 7.4 7.2 6.1 - 1.59 01:21 dcamera 656( 582) 102 55 2.9 2.4 3.6 2.9 2.8 - 1.50 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 46 14 22 268 (W) 2163 clear dust 17:00 48 15 21 253 (WSW) 1456 clear dust 18:00 48 13 25 256 (WSW) 2059 clear dust 19:00 45 13 18 267 (W) 1601 clear none 20:00 42 13 17 265 (W) 1128 clear none 21:00 41 14 14 258 (WSW) 773 clear none 22:00 40 15 17 281 (W) 927 clear none 23:00 39 14 20 314 (NW) 797 clear none 00:00 38 13 19 312 (NW) 731 clear none 01:00 38 13 6 323 (NW) 585 clear none 02:00 38 14 1 176 (S) 604 clear none 03:00 37 15 8 259 (W) 529 clear none 04:00 37 17 2 77 (ENE) 556 clear none 05:00 37 17 15 354 (N) 514 clear none 06:00 37 19 6 359 (N) 563 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 STATUS Telescope drives operational. Current TCC version: 1.2.4 Current TUI version: 2.6.0