From observe@aoc.nrao.eduMon Apr 25 22:47:37 2005 Date: Mon, 25 Apr 2005 22:14:24 +0000 From: observe To: vlbiobs@nrao.edu, pkondrat@cfa.harvard.edu Subject: 2005-04-24_1700_BK114D.txt - Corrected Log ************************************************************************ Filename: 2005-04-24_1700_BK114D Program: BK114D Subarray(s): 1 Observer(s): Paul Kondratko Operator(s): Steve Steele & David Midgett Date: 04/24/05 Configuration: B User #: 600 Decommissioned: 16 Source File(s): 203BK14A VLBI Ref. Ant: Observing Mode: Continuum VLBI Antenna Pad: Email Address: vlbiobs@nrao.edu, pkondrat@cfa.harvard.edu API (Atmospheric Phase Interferometer) information can be found at: http://www.vla.nrao.edu/astro/guides/api/ Adobe PDF version of this log is located at: http://www.vla.nrao.edu/operators/logs/ Visibility data is updated each day at IAT/UT midnight and is available from the online archive at: http://e2e.nrao.edu/archive/ ** Weather Information ** Time (IAT) Dew Pt Temp Wind Bar. Press API 04/24/05 17:00 2.2 9.1 6.2 m/s, W 783.6 10.9 04/24/05 18:30 2.6 12.2 SW at 7.6 m/s 782.4 38.7 04/24/05 20:11 -1.9 12 W at 12.6 m/s 781.7 51 04/24/05 22:32 -2.3 11.4 NW at 10.1 m/s 781.1 35.4 04/25/05 00:32 -2.1 9.8 NW at 11.6 m/s 781 10.2 04/25/05 02:32 -0.9 6.4 W at 5.9 m/s 783.5 6.2 04/25/05 04:32 -0.5 4.9 W at 4.9 m/s 783.8 5.2 04/25/05 05:54 -1.1 4.1 W at 4.7 m/s 783.9 7.9 04/25/05 06:53 -1.3 4 W at 6 m/s 783.9 14.4 Operator comments for the above weather entries 04/24/05 17:00 Sky overcast. Mixed clouds. Gusty winds. 04/24/05 18:30 Sky cover 80%. Mixed clouds. Gusty winds. 04/24/05 20:11 Sky cover 80%. Mixed clouds. Gusty winds. 04/24/05 22:32 Sky cover 40%. Mixed clouds. Gusty winds. 04/25/05 00:32 Sky cover 60%. Mixed clouds. Gusty winds. 04/25/05 02:32 Sky cover 70%. Mixed clouds. 04/25/05 04:32 Sky cover 70%. Mixed clouds. 04/25/05 05:54 Sky cover 70%. Mixed clouds. 04/25/05 06:53 Sky cover 60%. Mixed clouds. ** Visibility Tape Information ** Tape # Time of Final Record: DM0028 ** Monitor Tape Information ** Tape # File # Time of Final Record: N21412 5 04/25/05 00:00:00 N21412 6 Total # of antennas used = 27 ** Operator Comments ** Start Time End Time Form # #Ants Downtime (in minutes) 24Apr 17:00:37 Starting program BK114D. 24Apr 17:02:30 On source 1357+769 with all available antennas. The band(s) used is(are) K 04/24/05 17:00:37 04/25/05 07:48:10 C112151 1.00 887.6 Antenna 13 (Data: Lost): EVLA Antenna is being used for EVLA testing. 04/24/05 17:00:37 04/25/05 07:48:10 T100268 1.00 887.6 Antenna 14 (Data: Lost): EVLA Antenna is being used for EVLA testing. 24Apr 18:29:00 NOTE: Antennas are not phasing up well. Almost all antennas have a phase difference of >30 degrees from that of the reference antenna. This is possibly due to an observing frequency near the lower receiver limit coupled with unfavorable weather conditions. Moreover, numerous antennas have frequent Tsys fluctuations causing data to be flagged. 24Apr 18:34:00 Inspected the VLB instrumentation. No problems found. 24Apr 19:45:00 Inspected the VLB instrumentation. No problems found. 04/24/05 19:46:00 04/24/05 19:50:00 Power 5.00 20.0 Antenna(s) 1 5 6 7 10 (Data: Lost): SITE POWER Momentary power fluctuation caused antennas to lose non-critical power. Reset non-critical power, ACU's, and repointed. 04/24/05 19:50:00 04/24/05 19:54:30 Power 1.00 4.5 Antenna(s) 1 (Data: Lost): SITE POWER Antenna lost digital postion mode again. Reset ACU and repointed. 04/24/05 19:46:00 04/25/05 07:48:10 Power 1.00 722.2 Antenna(s) 8 (Data: Lost): SITE POWER Power fluctuation caused a subreflector controller fault. Controller will not reset or respond to commands. Antenna stowed. 04/24/05 20:00:00 04/24/05 20:13:30 Weather 1.00 13.5 Antenna(s) 2 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 20:46:00 04/24/05 20:51:00 Weather 1.00 5.0 Antenna(s) 22 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 24Apr 20:51:00 Inspected the VLB instrumentation. No problems found. 24Apr 21:49:00 Your new operator(s) is(are): Tiffany Borders 04/24/05 21:59:00 04/25/05 01:02:00 Weather 1.00 183.0 Antenna(s) 2 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:04:00 04/24/05 22:15:00 Weather 1.00 11.0 Antenna(s) 11 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:04:00 04/24/05 22:29:00 Weather 1.00 25.0 Antenna(s) 17 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:05:00 04/24/05 22:19:00 Weather 1.00 14.0 Antenna(s) 22 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:07:00 04/24/05 22:22:00 Weather 1.00 15.0 Antenna(s) 25 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:10:00 04/24/05 22:25:00 Weather 1.00 15.0 Antenna(s) 15 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:10:00 04/25/05 01:02:00 Weather 1.00 172.0 Antenna(s) 28 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 22:10:00 04/24/05 23:23:00 Weather 1.00 73.0 Antenna(s) 5 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 24Apr 22:46:00 Inspected the VLB instrumentation. No problems found. 04/24/05 22:58:00 04/24/05 23:27:00 Weather 1.00 29.0 Antenna(s) 22 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 23:30:00 04/25/05 00:36:00 Weather 1.00 66.0 Antenna(s) 5 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/24/05 23:32:00 04/25/05 00:42:00 Weather 1.00 70.0 Antenna(s) 27 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/25/05 00:02:00 04/25/05 00:45:00 Weather 1.00 43.0 Antenna(s) 17 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/25/05 00:04:00 04/25/05 00:38:00 Weather 1.00 34.0 Antenna(s) 22 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/25/05 00:15:00 04/25/05 00:21:00 Weather 1.00 6.0 Antenna(s) 15 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/25/05 00:17:00 04/25/05 00:50:00 Weather 1.00 33.0 Antenna(s) 25 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 04/25/05 00:15:00 04/25/05 00:26:00 Power 1.00 11.0 Antenna(s) 11 (Data: Lost): SITE POWER Momentary power fluctuation caused antennas to lose non-critical power. Reset non-critical power, ACU's, and repointed. 04/25/05 00:42:00 04/25/05 00:48:00 Weather 1.00 6.0 Antenna(s) 3 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 25Apr 0:58:00 Inspected the VLB instrumentation. No problems found. 04/25/05 01:07:00 Weather 1.00 Antenna(s) 2 (Data: Lost): WEATHER Antenna(s) auto-stowed due to high winds. 25Apr 2:05:00 Inspected the VLB instrumentation. No problems found. 25Apr 3:18:00 Inspected the VLB instrumentation. No problems found. 25Apr 4:32:00 Inspected the VLB instrumentation. No problems found. 25Apr 5:20:00 Inspected the VLB instrumentation. No problems found. 25Apr 5:53:00 Your new operator(s) is(are): Jim Campbell 25Apr 5:53:00 Ran a backup on the Modcomp partition. 25Apr 5:53:00 Inspected the VLB instrumentation. No problems found. 25Apr 6:53:00 Inspected the VLB instrumentation. No problems found. End Time Total Program Time % Downtime Total Downtime (in minutes) (in minutes) 04/25/05 07:48:10 23963.9 14.0% 3346.3