Subject: 3.5m Night Log 20230527 From: mcmillan@apo.nmsu.edu Date: Sun, 28 May 2023 11:58:49 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, May 27, 2023 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW05 P.Szkody A.Mukadam, P.Szkody UW09 B.Morris L.Hebb ON-SKY PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW05 Agile 20:29 20:36 UW09 ECHELLE 02:26 05:23 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW05/R 20:12 01:10 0 4.9 0 0 0.0 0.1 0 0 UW09/R 01:10 05:49 0.2 1.1 0 0 3.3 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan Weather was borderline at sunset, so I opened just long enough for sky flats and then closed to wait for improvement... and it got worse. We watched clouds and radar until second half, when the sky finally got better. After that, the remainder of the night was smooth and productive. ------- 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 -------------------------------------------------------------------------- 02:33 ecamera 324( -162) 225 44 12.0 11.7 12.2 11.7 11.2 ND3 1.60 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 60 22 12 245 (WSW) 825 ptly cldy none 17:00 61 21 16 266 (W) 473 ptly cldy none 18:00 61 20 9 263 (W) 696 ptly cldy none 19:00 58 19 14 279 (W) 828 ptly cldy none 20:00 57 20 6 267 (W) 2437 mstly cldy none 21:00 55 21 8 263 (W) 1118 mstly cldy none 22:00 55 21 2 243 (WSW) 1014 cloudy none 23:00 55 27 3 190 (S) 1076 cloudy none 00:00 53 36 9 142 (SE) 1121 cloudy none 01:00 54 27 14 244 (WSW) 1031 ptly cldy none 02:00 50 36 9 143 (SE) 901 mstly clr none 03:00 53 30 4 175 (S) 1095 clear none 04:00 53 28 7 218 (SW) 1104 clear none 05:00 53 25 2 206 (SSW) 1018 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: 1.4.2 Current HUB version: v20171231_01 Current TUI version: a>