Subject: 3.5m Night Log 20210703 From: dembicky@apo.nmsu.edu Date: Sun, 4 Jul 2021 11:38:46 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, July 03, 2021 PROG PI ASTRONOMER OBSERVER(S) -------------------------------------------------------------------- NM01 M.Croom M.Croom UW04 P.Yoachim J.Jiang JH04 N.Zakamska V.Chandra ACTUAL PROG INSTRUMENT START FINISH -------------------------------------------------------------------- NM01 DIS --:-- --:-- UW04 ARCTIC 03:25 03:43 JH04 ARCTIC 03:43 05:52 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DTN START FINISH D B D B D B D B ----------------------------------------------------------------- NM01/R 20:24 01:10 4.8 0 0 0 0.0 0.0 0 0 UW04/R 01:10 03:40 1.0 1.2 0 0 0.0 0.3 0 0 JH04/R 03:40 05:52 0 0 0 0 0.0 2.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Clouds and a few sprinkles during the first half of the night. Then clouds until around 03:00 when they started to move out. We had three different humidity readings tonight, 18% on the Optidew outside, 85% on the Optidew inside, and 40% on the old sensor. From the moisture on the handrail I am going with the inside Optidew as being more correct. We finally opened around 03:25 and stayed open for the remainder of the night. ------- 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 -------------------------------------------------------------------------- 03:32 arctic 449( 1078) 24 58 13.8 14.4 14.8 14.5 13.7 SDSS_g 0.68 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 62 35 0 204 (SSW) 261 cloudy none 17:00 62 35 3 315 (NW) 263 cloudy none 18:00 65 36 10 260 (W) 192 cloudy none 19:00 62 36 3 259 (W) 411 cloudy none 20:00 61 37 7 261 (W) 338 cloudy none 21:00 59 35 2 257 (WSW) 388 cloudy lt rain 22:00 60 34 2 261 (W) 293 cloudy none 23:00 58 34 3 197 (SSW) 277 cloudy none 00:00 58 33 2 216 (SW) 318 cloudy humid 01:00 58 32 6 239 (WSW) 256 cloudy humid 02:00 58 32 6 267 (W) 371 mstly cldy humid 03:00 57 31 7 264 (W) 312 ptly cldy humid 04:00 56 31 3 306 (NW) 577 mstly clr humid 05:00 54 31 5 349 (N) 583 mstly clr humid 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