Subject: 3.5m Night Log 20190727 From: trudyk@apo.nmsu.edu Date: Sun, 28 Jul 2019 11:15:50 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Saturday, July 27, 2019 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- H.Hwang H.Hwang DIS --:-- --:-- B.Morris B.Morris,G.Stefansson ARCTIC 02:00 04:17 INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- JH01/R 20:14 01:10 4.9 0 0 0 0.0 0.0 0 0 UW01/R 01:10 06:06 0.9 0 0 0 0.6 3.5 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Rudyk Evening started partly cloudy, but as the sun set, clouds and rain moved in. Clouds, rain and nearby radar returns kept us closed until 02:00. We opened when the dager of rain passed, but skies were still partly cloudy. Nonetheless, seeing was good. We observed the entirety of the transit, we only closed when the observer ran out of things to observe. No problems other than weather. ------- 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 -------------------------------------------------------------------------- 02:11 arctic 305( 1185) 44 49 16.4 17.4 17.6 17.4 16.5 SDSS_z 0.84 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 75 43 13 231 (SW) 392 ptly cldy none 17:00 74 45 8 252 (WSW) 469 ptly cldy none 18:00 72 42 11 245 (WSW) 431 ptly cldy none 19:00 69 42 12 214 (SW) 408 cloudy lt rain 20:00 63 48 11 19 (NNE) 2477 cloudy lt rain 21:00 62 48 17 66 (ENE) 1420 cloudy none 22:00 62 44 11 84 (E) 699 mstly cldy none 23:00 64 41 2 106 (ESE) 659 ptly cldy none 00:00 64 42 4 167 (SSE) 617 mstly cldy lt rain 01:00 64 42 5 249 (WSW) 1010 mstly cldy none 02:00 62 43 5 332 (NNW) 542 ptly cldy none 03:00 61 46 5 272 (W) 453 ptly cldy none 04:00 61 43 6 269 (W) 683 ptly cldy none 05:00 63 40 3 229 (SW) 570 ptly cldy 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