Subject: 3.5m Night Log 20190402 From: trudyk@apo.nmsu.edu Date: Wed, 3 Apr 2019 12:32:15 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, April 02, 2019 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- S.Barrows S.Barrows DIS 19:35 01:03 B.Bolin B.Bolin DIS 01:03 06:21 INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- CU05/R 19:32 01:10 0 0 0 0 5.6 0.0 0 0 UW04/R 01:10 06:40 0 0 0 0 5.0 0.5 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Rudyk We started out with mostly clear skies. Seeing was ok. We had some clouds come through around 21:00. It cleared again around 00:00. Winds started to get strong around 02:00. They were from the west, so we operated under westly wind restrictions. Wind began to back off around 04:00, and restrictions were lifted. We stayed open all night. ------- 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 -------------------------------------------------------------------------- 20:17 dcamera 541( 798) 24 54 7.6 8.8 9.0 8.7 7.8 - 1.21 01:05 dcamera 632( 649) -122 63 6.0 6.1 6.7 6.1 6.1 - 1.31 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 51 14 19 267 (W) 835 mstly clr none 17:00 52 14 18 248 (WSW) 673 mstly clr none 18:00 49 12 16 259 (W) 610 mstly clr none 19:00 47 14 17 225 (SW) 607 mstly clr none 20:00 46 13 19 252 (WSW) 645 mstly clr none 21:00 46 13 14 245 (WSW) 507 ptly cldy none 22:00 46 14 23 254 (WSW) 620 ptly cldy none 23:00 45 15 18 260 (W) 504 ptly cldy none 00:00 44 15 29 272 (W) 604 mstly clr none 01:00 43 15 23 268 (W) 536 mstly clr none 02:00 42 17 22 263 (W) 501 mstly clr none 03:00 41 18 25 268 (W) 583 mstly clr none 04:00 39 18 18 263 (W) 663 mstly clr none 05:00 38 18 18 258 (WSW) 676 mstly clr none 06:00 37 18 16 257 (WSW) 643 mstly clr 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