From observe@nrao.edu Sun Jan 28 07:14:21 2007 Date: Sun, 28 Jan 2007 14:14:07 +0000 From: VLA Operations To: vlbiobs@nrao.edu, brunthal@mpifr-bonn.mpg.de Subject: 2007-01-28_0143_BB229B.txt ************************************************************************ Filename: 2007-01-28_0143_BB229B Program: BB229B Subarray(s): 1 Observer(s): Andreas Brunthaler Operator(s): Tom Briscoe Date: 01/28/2007 Configuration: DnC User #: 600 Decommissioned: 21 Source File(s): 848B229B VLBI Ref. Ant: 10 Observing Mode: Phased Array VLBI Antenna Pad: DE8 Email Address: vlbiobs@nrao.edu,brunthal@mpifr-bonn.mpg.de 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 available from the online archive at: http://archive.nrao.edu ** Weather Information ** Time (IAT) Dew Pt Temp Wind Bar. Press API 28Jan 01:43:40 -8.5 1.7 SE at 0.4 m/s 788.6 5.9 28Jan 2:59:15 -8.2 0.6 W at 1.9 m/s 789.0 3.5 28Jan 4:59:41 -8.8 -1.5 SW at 2.4 m/s 789.6 4.5 28Jan 6:59:12 -8.5 -5.8 W at 0.8 m/s 790.4 1.3 28Jan 8:59:41 -9.4 -7.3 W at 0.8 m/s 790.5 1.4 28Jan 11:29:05 -10.0 -8.3 SW at 0.7 m/s 790.5 1.4 28Jan 13:59:51 -9.9 -8.2 W at 1.3 m/s 791.5 1.0 Operator comments for the above weather entries 28Jan 01:43:40 Sky cover 80%. Mixed clouds. 28Jan 2:59:15 Sky cover 80%. Mixed clouds. 28Jan 4:59:41 Sky cover 80%. Mixed clouds. 28Jan 6:59:12 Sky cover 10%. Stratiform clouds. 28Jan 8:59:41 Sky clear. 28Jan 11:29:05 Sky clear. 28Jan 13:59:51 Sky cover 10%. Stratiform clouds. ** Visibility Tape Information ** Tape # Time of Final Record: DM0169 ** Monitor Tape Information ** Tape # File # Time of Final Record: N21512 5 28Jan 10:46:00 N21513 2 Total # of antennas used = 27 ** Operator Comments ** START TIME END TIME FORM # #ANTS DOWNTIME (in minutes) 28Jan 1:43:40 Starting program BB229B. 28Jan 1:43:40 The band(s) used is(are): X K 28Jan 1:49:40 On source 3C48 with all available antennas. 28Jan 1:43:40 Antenna(s) : 8 11 12 19 20 22 25 28 have recently updated baseline parameters to correct for errors resulting from their recent relocation. Antenna(s) : 13 14 16 17 18 21 23 24 26 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. 28Jan 1:43:40 As part of the EVLA transition plan, a new correlator controller has replaced vintage equipment and is now routinely in use. The system has been thoroughly tested but we welcome reports of problems that may be related to improper correlator behavior to analysts@nrao.edu. 28Jan 1:43:40 We are currently including all checked-out (operational) EVLA antennas in the VLA by default. For your project, we have included the following EVLA antennas in the array: 13 14 16 18 23 24 28Jan 1:43:40 Please note that using the EVLA antennas is a shared-risk operation and we cannot guarantee that useful data will be produced by these antennas. Users should consult the web page http://www.vla.nrao.edu/astro/guides/evlareturn for known problems and workarounds in using the EVLA antennas with the VLA. We would like your input and feedback on the use of the EVLA antennas in your project; please send all comments and/or questions to gvanmoor@aoc.nrao.edu. 28Jan 01:43:40 28Jan 14:11:40 T100417 1.00 748.0 Antenna 26 (Data: Lost): EVLA Antenna is being used for EVLA testing 28Jan 01:43:40 28Jan 14:11:40 T100418 1.00 748.0 Antenna 17 (Data: Lost): EVLA Antenna is being used for EVLA testing 28Jan 01:43:40 28Jan 14:11:40 C119755 1.00 748.0 Antenna(s) 9 (Data: Lost): SERVO Antenna at final azimuth limit and will not move. Antenna is stowed. 28Jan 01:43:40 28Jan 02:20:00 Other 24.00 872.0 All antennas (Data: Lost): OBS PROGRAM No VLBA file was provided to the VLA. Attempting to resolve situation. A file was provided later. 28Jan 7:00:00 Your new operator(s) is(are): Sam Gilmore 28Jan 7:02:00 Inspected the VLB instrumentation. No problems found. 28Jan 7:22:00 Ran a backup on the Modcomp partition. 28Jan 8:26:00 Inspected the VLB instrumentation. No problems found. 28Jan 9:31:00 Inspected the VLB instrumentation. No problems found. 28Jan 10:46:00 Note: Started new monitor data tape due to unrecoverable error. 28Jan 11:07:00 Inspected the VLB instrumentation. No problems found. 28Jan 14:02:00 Inspected the VLB instrumentation. No problems found. End Time Total Program Time % Downtime Total Downtime (in minutes) (in minutes) 01/28/07 14:11:40 20196.0 15.4% 3116.0