Date: Fri, 7 May 2004 05:42:31 -0600 (MDT) From: Jack Dembicky Subject: 3.5m Night Log 20040506 Apache Point Observatory 3.5m Telescope Night Log Thursday, May 6, 2004 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- M.Skrutskie J.Wilson, J.Dembicky CorMass 11:50 05:20 INST SCHEDULED WEATH EQUIP OBS DAY NOT USED I/RO/DN START FINISH D B D B D B USE D B --------------------------------------------------------------------- DD02/O 20:48 05:11 1.7 1.3 0 0 0 5.4 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky We opened up around 21:10 just long enough to focus and have clouds roll in. We took some lamp spectra then, with the dome closed, and waited for the clouds to move out. We re-opened at 11:50. Seeing was excellent after the clouds moved thru with guider seeing at 0.81 arc sec with the R filter in place. Pointing was a little off when we went to a lower altitude in the S so I ran na2point and tweaked the mirror tilts slightly. (they were around 50 steps off). This seemed to improve things a bit. Several science targets again observed tonight, despite a few clouds. Dust obscured galaxy Pre-main sequence star QSO candidate 2 Nova ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEGDFVO) TI/SHU START FINISH DESCRIPTION ----------------------------------------------------------------------- ---------------- FOCUS LOG --------------- Air/Truss Wind Time Instrument Focus Az El Temp-C Dir MPH filt FWHM --------------------------------------------------------------------- 21:22 CorMass -100(1441) 66 60 13.3/14.8 59 17 2.2u 0.8 21:25 NA2gdr -3000(44000) 65 60 13.4/14.8 56 17 clear 1.0 23:57 CorMass -25(1415) 66 61 13.1/13.6 219 6 2.2u 0.6 00:05 NA2gdr -1990(45009) 64 63 13.1/13.5 226 2 R 0.8 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 16:01 63 22 5 231 (SW) 1238 Cloudy none 17:01 60 25 1 63 (ENE) 1101 Cloudy none 18:01 60 20 0 146 (SE) 1118 Cloudy none 19:01 58 26 5 94 (E) 1126 Cloudy none 20:01 56 26 16 72 (ENE) 1093 Mst. Cldy none 21:01 56 25 12 78 (ENE) 1130 Cloudy none 22:01 56 25 0 188 (S) 1234 Cloudy none 23:01 57 23 5 60 (ENE) 1226 Pt. Cldy none 00:01 55 22 6 208 (SSW) 1189 Mst. Clr none 01:01 56 23 7 212 (SSW) 1264 Clear none 02:01 56 22 5 190 (S) 1299 Clear none 03:01 56 22 4 193 (SSW) 1327 Clear none 04:01 56 22 2 247 (WSW) 1331 Pt. Cldy none 05:01 55 23 4 256 (WSW) 1240 Pt. 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 Remark version: 2.85b Current guide software version: guider v4.1b4 Current TCC version: 2.7.2 Current TUI version: TUI-0.843