From observe@banshee.vla.NRAO.EDUMon Jan 27 09:30:39 2003 Date: Mon, 27 Jan 2003 03:55:07 +0000 From: VLA Operations To: vlbiobs@cv3.cv.nrao.edu, bartel@yorku.ca, mratner@cfa.harvard.edu Subject: VLA Observing Log for project BR088A on 03Jan26. An ascii text copy of your VLA Observing Log follows: ************************************************************************ Program: BR088A Subarray(s): #1 Observer(s): Ratner, Bartel Operator(s): Greg Patterson Date: Sunday, Jan 26 2003 Configuration: CD User Number: 600 Decommissioned: 6 Source File(s): 381BR88Z VLBI Ref. Ant: 12 Observing Mode: Phased Array VLB Antenna Pad: DE8 API (Atmospheric Phase Interfermeter) data can be found at http://www.aoc.nrao.edu/vla/html/PhaseMonitor/sitemon.html. ** Weather Information ** Time (IAT) Dew Point (C) Temp. (C) Wind Bar. Pressure (mbar) API RMS Phase 03Jan26 15:50 -5.9C -3.3C Calm 797.6mbars 3 03Jan26 18:32 -1.6C 8.3C W at 1.2 m/s 797.4mbars 4.9 03Jan26 22:57 1.9C 14.2C SE at 2 m/sec 794.7mbars 9.2 Operator comments for the above weather entries. The sky is clear. The sky is clear. The sky is clear. ** Visibility Tape Information ** Tape # File # Time of Final Record: N17737 1 03Jan26 at 23:25:42 N17738 1 ** Monitor Tape Information ** Tape # File # Time of Final Record: N17720 6 03Jan27 at 0:00:00 N17720 7 Antenna(s) Used: 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ** Operator Comments ** 03Jan26 15:49:13 Starting program: BR088A, observe file: 381BR88Z. 03Jan26 15:53:00 On source 3C345 with all available antennas. The band(s) used is(are) X band(s). 03Jan26 15:49:13 The on-line baseline parameters for antenna(s) 7 8 10 12 13 15 17 20 21 23 27 28 have recently been updated (prior to your observing run) to correct for errors resulting from their recent relocations. In the analysis of your data would you please check for any significant baseline errors especially on these antennas and let the Data Analysts (email - analysts@nrao.edu) know what you find when there are significant baseline errors. Thank you in advance. 03Jan26 15:49:13 - 03Jan27 03:47:00 Form #: C110673 # of Ants: 1.00 Downtime: 717.78 Antenna(s) 26 - OTHER (Miscellaneous) Problem(s); Antenna fringing about twice as high as other antennas at X band for an as yet undetermined reason. Observing Data: Unknown Effect 03Jan26 15:52:56 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. 03Jan26 17:02:59 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan26 18:24:00 - 03Jan26 18:25:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 18:44:00 - 03Jan26 18:44:00 Form #: C110678 # of Ants: 1.00 Downtime: 0.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump; not near boundary No parity errors present. Observing Data: Corrupted 03Jan26 18:56:00 - 03Jan26 18:56:00 Form #: Other # of Ants: 1.00 Downtime: 0.00 Antenna(s) 15 - LOCAL OSC (Local Oscillator) Problem(s); Possible 5MHz phase jump; no parity errors present. Observing Data: Corrupted 03Jan26 19:03:00 - 03Jan26 19:03:00 Form #: Other # of Ants: 1.00 Downtime: 0.00 Antenna(s) 15 - LOCAL OSC (Local Oscillator) Problem(s); Possible 5MHz phase jump; no parity errors present. Observing Data: Corrupted 03Jan26 19:11:54 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan26 19:41:00 - 03Jan26 19:42:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 19:58:00 - 03Jan26 19:59:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 20:38:00 - 03Jan26 20:39:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 21:20:30 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan26 21:28:00 - 03Jan26 21:28:00 Form #: C110678 # of Ants: 1.00 Downtime: 0.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump; not near boundary No parity errors present. Observing Data: Corrupted 03Jan26 21:32:00 - 03Jan26 21:33:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 21:45:00 - 03Jan26 21:45:00 Form #: Other # of Ants: 1.00 Downtime: 0.00 Antenna(s) 15 - LOCAL OSC (Local Oscillator) Problem(s); Possible 5MHz phase jump; no parity errors present. Observing Data: Corrupted 03Jan26 22:40:00 - 03Jan26 22:41:00 Form #: C110678 # of Ants: 1.00 Downtime: 1.00 Antenna(s) 19 - LOCAL OSC (Local Oscillator) Problem(s); Possible 600MHz round trip phase jump accompanied by a host of other LO related errors. Problem cleared itself within approximately a minute. Observing Data: Corrupted 03Jan26 22:57:16 **** Larry Brothers is your operator. **** 03Jan26 23:02:28 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan27 00:01:51 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan27 01:01:13 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan27 01:59:38 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan27 02:22:30 - 03Jan27 02:31:00 Form #: Other # of Ants: 27.00 Downtime: 229.50 VLBA REC (VLBA recorder, formatters & plybk drives) Problem(s); VLBA tape control computer halted during this time to allow VLA to change tape. Observing Data: Lost 03Jan27 03:07:54 The telescope operator made an inspection of the VLB instrumentation. No problems found. 03Jan27 03:47:00 End of program BR088A. Total Downtime = 953.3 minutes (4.9% of total time). AsciiFileOut Version: 1.11 -- Version Date: June 20, 1996