Subject: 3.5m Night Log 20210113 From: cgray@apo.nmsu.edu Date: Thu, 14 Jan 2021 12:55:00 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Wednesday, January 13, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- UW02 Y.Ivezi P.Yoachim NM09 D.Bizyaev D.Bizyaev WY01 M.Brotherton J.McLane ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- UW02 ARCTIC 17:27 20:21 NM09 DIS 20:36 20:52 WY01 Tspec --:-- --:-- PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- UW02/R 17:27 20:27 0 0 0 0 2.4 0.6 0 0 NM09/R 20:27 05:17 8.6 0 0 0 0.2 0.0 0 0 WY01/R 05:17 06:57 1.7 0.0 0 0 0 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: C.Gray dataq and strip chart needed to be restarted around 20:00. The computer froze and I had to do a hard reboot. The wind was a bit intense tonight! It also blew in clouds. We were able to hold on through the wind for awhile but the clouds rolling in thick around 21:00 and we weren't able to get anything. Then the wind started gusting really high (we got up to 60 mph) and we were not able to reopen. The telescope is at an odd alt and az because I closed thinking we would reopen. Once the winds shot up I decided to not attempt parking. Thankfully, there were no power flickers. Yet. I can't say what happened after I went to bed... ------- 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 -------------------------------------------------------------------------- 17:57 arctic 571( 691) 2 77 3.1 3.8 4.2 3.4 3.1 sdss-z 1.46 20:44 dcamera 576( 460) 159 68 4.0 2.5 3.5 3.2 3.6 -- 1.03 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 41 -7 19 18 (NNE) 430 mstly clr none 17:00 39 -8 22 8 (N) 397 mstly clr none 18:00 37 -1 22 357 (N) 381 mstly clr none 19:00 37 1 27 357 (N) 409 ptly cldy none 20:00 38 2 22 332 (NNW) 392 mstly cldy none 21:00 39 4 14 331 (NNW) 381 cloudy none 22:00 38 3 5 343 (NNW) 410 cloudy none 23:00 37 2 14 12 (NNE) 394 cloudy none 00:00 37 10 27 16 (NNE) 370 mstly cldy none 01:00 39 16 32 32 (NNE) 250 mstly cldy none 02:00 40 16 33 7 (N) 225 ptly cldy none 03:00 41 14 25 7 (N) 307 ptly cldy none 04:00 38 14 13 24 (NNE) 280 ptly cldy none 05:00 37 11 28 12 (NNE) 513 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 SOFTWARE ---------- Current TCC version: 1.4.2 Current HUB version: v20171231_01 Current TUI version: 2.6.0