Subject: 3.5m Night Log 20090527 Date: Thu, 28 May 2009 12:12:45 +0000 (UTC) From: bketzeba@apo.nmsu.edu Apache Point Observatory 3.5m Telescope Night Log Wednesday, May 27, 2009 ACTUAL ASTRONOMER OBSERVER(S) INSTRUMENT START FINISH ------------------------------------------------------------------- T.Murphy R.McMillan APOLLO 19:30 21:10 P.Szkody P.Szkody DIS 00:15 06:00 INST SCHED(TWILIGHT) WEATH EQUIP OBS DAY NOT USED I/ROW/DN START FINISH D B D B D B USE D B ---------------------------------------------------------------------- UW13/R 21:06 21:12 0 0 0 0 0 0.1 0.9 0 0 UW07/R 21:12 04:55 0 0 0.5 2.5 4.7 0 0 0 0 note: scheduled times listed include instrument change time ------------- ACTIVITY LOG -------------- Observing Specialist: B.Ketzeback Az Vel Scale Was 579 Measured 579.2 n/c Alt Vel Scale Was -603 Measured -604.0 n/c Apollo folks had some equipment problems but were still able to get returns off of 2 reflectors. As soon as the Apollo time was over, I switched to DIS was able to focus. I was just handing the telescope over to the observer when the main UPS for the telescope, instruments and communications in the dome tripped its output breaker. It took about an hour to diagnose the problem over the phone with Mark. Once power was restored to the axis controllers, mirror controllers and instruments it took another two hours to recover doing axis remaps, homing the mirror actuators for the tertiary and secondary as well as bringing DIS back up in a state it could be used. The root cause for the overload of the UPS is still unknown but will likely be investigated further by the day staff. The second half of the night was productive for the observer with much fewer clouds and better seeing than the first part of the night would have been. Speical thanks to Mark Klaene, Jon Brinkman and Nick McDonald for their assistance in troubleshooting and recovery. ------- FAILURE LOG ------- PROG INST FAILURE MODE TIME (SEDFNVOG) TI/SHU START FINISH DESCRIPTION ---------------------------------------------------------------------- UW07 D TI/H 21:15 00:15 Loss of 4KVA UPS power ---------------- FOCUS LOG --------------- Time Instrument Focus Az El Temp Strc Prim Sec Air filt FWHM -------------------------------------------------------------------------- 20:05 APOLLO 200( 1331) 81 50 11.3 14.5 11.9 13.2 11.9 --- 2.00 21:14 dis-slit 200( 400) 263 70 10.6 12.2 11.2 11.0 10.6 --- 1.26 00:08 dis-slit 63( 166) 3 80 8.9 10.3 9.9 9.5 9.0 --- 1.28 ------------- WEATHER LOG ---------------- Wind Precip.or Time Temp F Dewp F MPH Direction Dust Sky Conditions ------------------------------------------------------------------- 16:00 59 28 7 252 (WSW) 1223 ptly cldy none 17:00 65 32 7 311 (NW) 1206 ptly cldy none 18:00 53 33 12 60 (ENE) 1147 ptly cldy none 19:00 53 34 10 27 (NNE) 2256 ptly cldy none 20:00 53 27 11 305 (NW) 1222 ptly cldy none 21:00 51 28 11 8 (N) 1273 mstly clr none 22:00 11 33 (NNE) 1219 mstly cldy none 23:00 52 25 11 358 (N) 1160 ptly cldy none 00:00 48 27 11 83 (E) 1082 mstly clr none 01:00 46 31 1 153 (SSE) 1175 mstly clr none 02:00 48 32 4 251 (WSW) 1171 mstly clr none 03:00 48 32 4 187 (S) 1124 clear none 04:00 47 34 16 146 (SE) 1031 clear none 05:00 46 41 11 180 (S) 1265 clear none 06:00 45 38 9 178 (S) 1201 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: 2.10.0