From: Russet McMillan Subject: 3.5m Night Log 20040621 Date: Tue, 22 Jun 2004 05:13:08 -0600 (MDT) Apache Point Observatory 3.5m Telescope Night Log Monday, June 21, 2004 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH -------------------------------------------------------------------- J.Hennawi J.Hennawi DIS 21:15 22:47 INST SCHEDULED WEATH EQUIP OBS DAY NOT USED I/RO/DN START FINISH D B D B D B USE D B --------------------------------------------------------------------- PU01/R 21:18 04:52 5.4 0.7 0 0 0 1.5 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: R.McMillan We opened at the end of twilight in defiance of some nearby virga, but closed after a few targets in response to threatening radar returns. We stayed closed for an impressive dust spike (triggered by outflow from a storm in Amarillo), which was later followed by an impressive humidity spike. ------- 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 --------------------------------------------------------------------- 21:17 DISslit -75(1574) 83 70 15.5/19.0 255 7 - 1.35 21:17 NA2gdr -2052(44947)83 70 15.5/19.0 255 7 R 1.28 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------ 17:01 73 29 17 252 (WSW) 361 mstly clr none 18:01 70 27 10 267 (W) 427 mstly clr none 19:01 70 25 7 249 (WSW) 434 ptly cldy none 20:01 64 22 13 262 (W) 417 ptly cldy none 21:01 62 21 9 269 (W) 382 ptly cldy none 22:01 62 20 6 264 (W) 368 ptly cldy none 23:01 61 20 9 277 (W) 335 ptly cldy none 00:01 57 27 4 263 (W) 21388 ptly cldy dust 01:01 55 30 9 279 (W) 9412 ptly cldy dust 02:01 55 31 6 333 (NNW) 6418 mstly clr dust 03:01 48 40 20 76 (ENE) 3726 mstly clr none 04:01 46 42 26 72 (ENE) 1326 mstly clr fog 05:01 45 43 22 68 (ENE) 913 mstly clr fog 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-0.85