From observe@nrao.edu Tue Dec 27 14:47:04 2005 Date: Tue, 27 Dec 2005 21:46:56 +0000 From: VLA Operations To: vlbiobs@nrao.edu, pkondrat@cfa.harvard.edu Subject: 2005-12-27_0717_BK114F.txt ************************************************************************ Filename: 2005-12-27_0717_BK114F Program: BK114F Subarray(s): 1 Observer(s): Paul Kondratko Operator(s): Tom Briscoe Date: 12/27/2005 Configuration: D User #: 600 Decommissioned: 24 Source File(s): 450K114F VLBI Ref. Ant: 10 Observing Mode: Phased Array VLBI Antenna Pad: DE8 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 27Dec 07:17:50 -7.8 4.2 W at 5.7 m/s 787.8 3.4 27Dec 9:59:30 -8.3 1.4 W at 4.9 m/s 788.8 5.0 27Dec 11:59:22 -7.3 3.2 NW at 6.4 m/s 788.5 9.7 27Dec 13:59:18 -7.3 2.6 NW at 7.5 m/s 789.3 17.5 27Dec 14:49:36 -6.5 2.3 NW at 6.3 m/s 789.6 15.4 27Dec 17:59:09 -8.4 6.3 NW at 7.3 m/s 791.3 9.7 27Dec 19:59:07 -11.3 8.9 NW at 9.7 m/s 790.1 4.6 27Dec 21:00:00 -11.5 9.7 NW at 6.0 m/s 789.6 4.7 Operator comments for the above weather entries 27Dec 07:17:50 Sky clear. 27Dec 9:59:30 Sky clear. 27Dec 11:59:22 Sky clear. 27Dec 13:59:18 Sky cover 30%. Stratiform clouds. 27Dec 14:49:36 Sky cover 20%. Stratiform clouds. 27Dec 17:59:09 Sky cover 10%. Stratiform clouds. 27Dec 19:59:07 Sky cover 20%. Stratiform clouds. 27Dec 21:00:00 Sky cover 30%. Stratiform clouds. ** Visibility Tape Information ** Tape # Time of Final Record: DM0075 ** Monitor Tape Information ** Tape # File # Time of Final Record: N21454 1 Total # of antennas used = 27 ** Operator Comments ** START TIME END TIME FORM # #ANTS DOWNTIME (in minutes) 27Dec 7:17:50 Starting program BK114F. 27Dec 7:17:50 The band(s) used is(are): K 27Dec 7:21:30 On source 0059+581 with all available antennas. 27Dec 7:21:30 Antenna(s) : 20 do not have good baseline positions determined for them because they were moved to their present location recently. Please check for any significant errors and let the Data Analysts (email - analysts@nrao.edu) know what you find. Thank you. 27Dec 07:17:50 27Dec 21:45:20 C112151 1.00 867.5 Antenna 13 (Data: Lost): EVLA Antenna is being used for EVLA testing. 27Dec 07:17:50 27Dec 21:45:20 T100268 1.00 867.5 Antenna 14 (Data: Lost): EVLA Antenna is being used for EVLA testing. 27Dec 07:17:50 27Dec 21:45:20 T100312 1.00 867.5 Antenna 16 (Data: Lost): EVLA Antenna is being used for EVLA testing. 27Dec 07:17:50 27Dec 21:45:20 T100329 1.00 867.5 Antenna 18 (Data: Lost): EVLA Antenna is being used for EVLA testing. 27Dec 7:25:00 NOTE: Baseband VLBI channels 5 and 6 have low total power. The VLBA operator has been informed. 27Dec 8:28:00 Ran a backup on the Modcomp partition. 27Dec 8:28:00 SHADOWING IS OCCURRING! Some antennas are blocking the view of your radio source from other antennas. You may have to edit your data. Observing data: Corrupted. 27Dec 8:17:00 Inspected the VLB instrumentation. No problems found. 27Dec 08:45:50 27Dec 09:06:20 Other 23.00 471.5 All antennas (Data: Lost): OBS PROGRAM Source J1453+26 was below the lower elevation limit of the antennas. 27Dec 9:17:00 Inspected the VLB instrumentation. No problems found. 27Dec 10:17:00 Inspected the VLB instrumentation. No problems found. 27Dec 11:20:00 Inspected the VLB instrumentation. No problems found. 27Dec 12:15:00 Inspected the VLB instrumentation. No problems found. 27Dec 13:10:00 27Dec 13:19:00 PM 1.00 9.0 Antenna(s) 20 (Data: Lost): CRYOGENICS Cryo techs charging compressors. Antenna stowed. 27Dec 13:20:00 Inspected the VLB instrumentation. No problems found. 27Dec 14:50:00 Your new operator(s) is(are): Larry Brothers 27Dec 15:00:00 Inspected the VLB instrumentation. No problems found. 27Dec 15:25:00 27Dec 16:18:00 C117418 1.00 53.0 Antenna(s) 1 (Data: Lost): SERVO Azimuth motor faults, will not remain reset, servo tech notified and responding 27Dec 16:01:00 Inspected the VLB instrumentation. No problems found. 27Dec 16:05:00 27Dec 16:52:00 PM 1.00 47.0 Antenna(s) 20 (Data: Lost): CRYOGENICS Antenna is stowed for cryo leak checks. 27Dec 17:05:00 Inspected the VLB instrumentation. No problems found. 27Dec 17:13:00 27Dec 17:35:00 PM 1.00 22.0 Antenna(s) 20 (Data: Lost): CRYOGENICS Antenna is stowed to change helium lines. 27Dec 18:10:00 Inspected the VLB instrumentation. No problems found. 27Dec 18:56:00 27Dec 20:58:00 C117419 1.00 122.0 Antenna(s) 5 (Data: Lost): FRONT END K/Ku first LO (F3) lock lost at non-standard frequency, taken from analog sum 27Dec 19:08:00 Inspected the VLB instrumentation. No problems found. 27Dec 20:01:00 Inspected the VLB instrumentation. No problems found. 27Dec 21:10:00 Inspected the VLB instrumentation. No problems found. End Time Total Program Time % Downtime Total Downtime (in minutes) (in minutes) 12/27/05 21:45:20 23422.5 17.9% 4194.5