Subject: 3.5m Night Log 20190331 From: trudyk@apo.nmsu.edu Date: Mon, 1 Apr 2019 11:13:17 +0000 (UTC) Apache Point Observatory 3.5m Telescope Night Log Sunday, March 31, 2019 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- G.Stringfellow G.Stringfellow TSPEC 19:31 20:37 G.Wallerstein I.Farrell DIS --:-- --:-- E.Bellm M.Graham DIS --:-- --:-- INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- CU07/R 19:31 22:01 1.4 0 0 0 1.1 0.0 0 0 UW16/R 22:01 01:10 3.2 0 0 0 0.0 0.0 0 0 UW13/R 01:10 06:43 3.9 1.6 0 0 0.0 0.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: T.Rudyk We started clear with bad seeing. A well-defined front was headed our way, and began to hit us around 20:15. Skies clouded, and snow started around 21:45. Snow grew heavier after midnight. Snow stopped around 01:00 but humidity remained high. Humidity dropped around 03:45 so we opened. Unfortuately, the wind quickly grew strong, and blowing snow became a problem, so we closed almost immediately. The mirror appears to be safe (mirror was cold 1u per 0.1 cubic feet. TELESCOPE STATUS Telescope drives operational. Current TCC version: 1.2.4 Current TUI version: 2.6.0