Date: Thu, 23 Apr 2009 05:20:31 -0600 (MDT) Subject: 3.5m Night Log 20090422 From: "Jack Dembicky" Apache Point Observatory 3.5m Telescope Night Log Wednesday, April 22, 2009 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- C.Badenes C.Badenes, S.Thompson DIS --:-- --:-- J.Gauther J.Gauther, J.Helsby DIS --:-- --:-- INST SCHED(TWILIGHT) WEATH EQUIP OBS DAY NOT USED I/ROW/DN START FINISH D B D B D B USE D B --------------------------------------------------------------------- PU01/O 20:35 01:05 4.5 0 0 0 0 0 0 0 0 UC01/R 01:05 05:28 4.0 0.4 0 0 0 0 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: J.Dembicky Az Vel Scale Meas 572.7 Was 578.0 Changed 573.0 Alt Vel Scale Meas -603.5 Was -606.0 Changed -604.0 We opened around 23:40 tonight just in time for the clouds to move back on top of us. We again tried at 03:45 and managed to get focused and a std. star before the clouds once again were too thick to observe thru. No useful science so I marked all the time loss due to weather. ------------- ACTIVITY 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 ----------------------------------------------------------------------- 23:54 dis-slit -187( 15) 200 66 11.4 12.2 12.3 11.5 11.2 -- 1.30 03:45 dis-slit 69( 147) 348 66 9.9 9.7 10.1 9.1 9.7 -- 1.23 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------- 16:00 63 18 18 243 (WSW) 631 cloudy none 17:00 60 16 17 252 (WSW) 598 cloudy none 18:00 58 14 13 245 (WSW) 575 cloudy none 19:00 56 15 18 255 (WSW) 379 cloudy none 20:00 54 14 22 261 (W) 599 cloudy none 21:00 53 14 17 254 (WSW) 654 cloudy none 22:00 53 18 12 264 (W) 859 cloudy none 23:00 52 18 15 251 (WSW) 946 mstly cldy none 00:00 53 18 17 258 (WSW) 755 cloudy none 01:00 51 16 12 241 (WSW) 909 cloudy none 02:00 51 16 18 267 (W) 902 cloudy none 03:00 51 15 13 263 (W) 895 mstly cldy none 04:00 50 17 15 243 (WSW) 1028 cloudy none 05:00 48 16 12 243 (WSW) 1010 cloudy 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: 2.10.0 Current TUI version: TUI 1.5.1