Subject: 3.5m Night Log 20201215 From: dembicky@apo.nmsu.edu Date: Wed, 16 Dec 2020 13:55:25 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Tuesday, December 15, 2020 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- GS01 D.Michael B.Meena, G.Polack NM05 K.Sanderson K.Sanderson, A.Dijeau ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- GS01 ARCTIC 17:08 00:12 NM05 DIS 00:25 07:10 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- GS01/R 17:08 00:10 0 0 0.5 0 5.4 1.1 0 0 NM05/R 00:10 06:50 0 0 0 0 6.7 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky The ARCTIC filter wheel got lost (? displayed) when the user tried to change filters. Rotation was around 109 deg. I was able to home it at 0 deg but when we rotated back to >100 deg the it would get lost on the filter move. PR submitted. The target was too high after resettting so they moved to a different target with a different rotation. No other problems but we never rotated back to > 100 deg rotation. It worked fine at -115 deg rotation. No problems 2nd half. Nice clear night but it was a bit cold outside. ------- FAILURE LOG ------- FAILURE MODE TIME PROG INSTR TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- GS01 ARCTIC I/H 19:25 19:55 Filter wheel got lost when rotation was >105 deg. ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 18:01 arctic 464( 75) 105 66 -7.9 -7.2 -6.6 -7.5 -7.9 J-C_B 1.72 18:02 NA2gdr 833(37833) 105 66 -7.9 -7.2 -6.5 -7.5 -7.9 R 1.25 20:03 arctic 572( 137) 86 80 -7.8 -8.0 -7.5 -8.0 -7.7 J-C_R 1.07 20:03 NA2gdr 966(37966) 86 80 -7.8 -8.0 -7.5 -8.0 -7.8 R 1.40 00:33 dcamera 547( -88) -155 67 -8.3 -8.6 -8.0 -8.4 -8.2 -- 1.07 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 19 10 13 323 (NW) 205 clear none 17:00 19 10 2 180 (S) 196 clear none 18:00 18 10 13 20 (NNE) 161 clear none 19:00 18 9 16 14 (NNE) 128 clear none 20:00 18 9 12 344 (NNW) 128 clear none 21:00 18 9 11 28 (NNE) 102 clear none 22:00 17 8 15 0 (N) 185 clear none 23:00 18 5 8 31 (NNE) 162 clear none 00:00 18 8 14 36 (NE) 182 clear none 01:00 17 8 19 16 (NNE) 178 clear none 02:00 17 4 26 38 (NE) 134 clear none 03:00 18 2 18 20 (NNE) 93 clear none 04:00 20 -3 20 29 (NNE) 70 clear none 05:00 25 -7 12 333 (NNW) 39 clear none 06:00 24 -17 15 7 (N) 36 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: 2.6.0