Date: Thu, 29 Apr 2010 05:29:41 -0600 (MDT) Subject: 3.5m Night Log 20100428 From: "Jack Dembicky" Apache Point Observatory 3.5m Telescope Night Log Wednesday April 28, 2010 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- B.Ketzeback J.Dembicky TSPEC --:-- --:-- A.Verbiscer A.Verbiscer TSPEC 23:10 01:00 C.Miller C.Miller, M.Buie DIS 01:10 06:10 PROG SCHEDULED WEATH EQUIP OBS NOT USED I/ROW/DN START FINISH D B D B D B D B ------------------------------------------------------------------ NM08/W 19:51 20:51 0.5 0.5 0 0 0 0 0 0 UV01/R 20:51 01:10 0 2.3 0 0 0 2.0 0 0 NM03/O 01:00 06:10 0 0 0 0 0 5.0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Spicam temp at start of night 168.3K Spicam temp at end of night 163.3K Clouds at the start of the night kept us closed. They cleared out around 23:00. Seeing blew up around 03:00 to 2.5 to 3+ arc sec. ------------- FAILURE LOG -------------- PROG INST FAILURE MODE TIME (STEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM ----------------------------------------------------------------------- 23:16 TSPEC 89( 522) 2 57 9.9 10.7 10.6 10.1 10.2 Ks 1.30 01:15 dis-slit 182( 230) 56 55 8.6 8.9 9.2 8.4 8.7 -- 1.45 02:53 dis-slit 112( 138) 35 31 7.6 7.7 7.9 7.0 7.4 -- 1.56 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------- 16:00 55 15 24 265 (W) 2004 mstly cldy none 17:00 55 15 20 263 (W) 2005 mstly cldy none 18:00 55 16 27 247 (WSW) 2090 mstly cldy none 19:00 52 15 19 260 (W) 1964 mstly cldy none 20:00 52 17 25 268 (W) 1958 cloudy none 21:00 52 18 26 265 (W) 1805 cloudy none 22:00 51 20 25 252 (WSW) 1909 cloudy none 23:00 49 20 26 233 (SW) 1895 ptly cldy none 00:00 49 18 21 250 (WSW) 2221 clear none 01:00 48 18 27 255 (WSW) 2382 clear none 02:00 45 19 24 236 (SW) 2167 clear none 03:00 45 18 23 234 (SW) 2139 clear none 04:00 45 18 23 254 (WSW) 2014 clear none 05:00 44 18 18 224 (SW) 2225 clear 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: 2.11.1 Current TUI version: 1.7.2