Date: Sat, 21 Sep 2013 11:20:21 -0000 (UTC) Subject: 3.5m Night Log 20130920 From: "Alysha Shugart" Apache Point Observatory 3.5m Telescope Night Log Friday, September 20, 2013 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- M.Kaiser M.Morris ECHELLE 22:36 01:10 T.Brandt J.Wisniewski ECHELLE 01:12 02:22 INST SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ---------------------------------------------------------------- JH05/R 19:11 01:10 0.5 2.9 0 0 0.0 2.6 0 0 PU08/R 01:10 06:43 0 4.4 0 0 0.0 1.2 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: A.Shugart High humidity and rain threats kept us closed for the beginning of the night. Decided to open at 22:36 once radar in Tularosa Basin dissipated and the telescope was still warm enough not to be threatened by higher humidity. Seeing was horrible upon opening, but we managed to get data with echelle to start. Closed again at 02:22. Humidity limits were finally breeched after we had been pushing them all night. We gave up shortly after 05:00 after hours of no change. ------- 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 -------------------------------------------------------------------------- 22:49 ECHELLE 821( -66) 311 47 8.4 10.1 12.0 9.4 8.5 clear 2.70 00:14 ECHELLE 763( -165) 314 70 8.6 9.3 10.8 9.0 8.5 clear 1.52 01:25 ECHELLE 578( -364) 102 76 9.7 9.0 9.9 9.0 8.9 ND3 1.11 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:00 56 46 2 325 (NW) ptly cldy humid 17:00 54 45 8 83 (E) ptly cldy humid 18:00 52 45 11 61 (ENE) mstly cldy humid 19:00 50 47 20 69 (ENE) ptly cldy humid 20:00 49 46 13 70 (ENE) mstly clr humid 21:00 48 45 16 79 (E) mstly clr humid 22:00 48 45 16 73 (ENE) mstly clr humid 23:00 47 45 19 68 (ENE) mstly clr humid 00:00 48 43 14 64 (ENE) ptly cldy none 01:00 50 45 8 25 (NNE) mstly cldy humid 02:00 50 45 10 29 (NNE) mstly cldy humid 03:00 50 45 6 358 (N) ptly cldy humid 04:00 49 45 8 12 (NNE) ptly cldy humid 05:00 49 46 12 10 (N) 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 STATUS Telescope drives operational. Current TCC version: 2.15.0 Current TUI version: 2.1.0