From observe@nrao.edu Wed Jan 24 06:35:28 2007 Date: Wed, 24 Jan 2007 13:35:13 +0000 From: VLA Operations To: vlbiobs@nrao.edu, lincoln@cfa.harvard.edu Subject: 2007-01-24_0507_BG169C.txt ************************************************************************ Filename: 2007-01-24_0507_BG169C Program: BG169C Subarray(s): 1 Observer(s): Lincoln Greenhill Operator(s): David Midgett Date: 01/24/2007 Configuration: DnC User #: 600 Decommissioned: 21 Source File(s): 844G169 VLBI Ref. Ant: 10 Observing Mode: Phased Array VLBI Antenna Pad: DE8 Email Address: vlbiobs@nrao.edu, lincoln@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 available from the online archive at: http://archive.nrao.edu ** Weather Information ** Time (IAT) Dew Pt Temp Wind Bar. Press API 24Jan 05:07:00 -9.9 -5.6 SE at 2.2 m/s 793.1 1.7 24Jan 6:59:37 -11.8 -9.3 NE at 0.2 m/s 793.1 2.3 24Jan 8:59:38 -11.4 -8.1 W at 1.3 m/s 792.3 1.3 24Jan 11:09:41 -12.2 -10.0 N at 0.5 m/s 792.5 1.4 Operator comments for the above weather entries 24Jan 05:07:00 Sky clear. 24Jan 6:59:37 Sky clear. 24Jan 8:59:38 Sky clear. 24Jan 11:09:41 Sky clear. ** Visibility Tape Information ** Tape # Time of Final Record: DM0168 ** Monitor Tape Information ** Tape # File # Time of Final Record: N21511 1 Total # of antennas used = 27 ** Operator Comments ** START TIME END TIME FORM # #ANTS DOWNTIME (in minutes) 24Jan 5:07:00 Starting program BG169C. 24Jan 5:07:00 The band(s) used is(are): X K 24Jan 5:13:00 On source 3C48 with all available antennas. 24Jan 5:07:00 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) : 1 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. 24Jan 5:07:00 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. 24Jan 5:07:00 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 26 24Jan 5:07:00 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. 24Jan 05:07:00 24Jan 13:26:00 T100418 1.00 499.0 Antenna 17 (Data: Lost): EVLA Antenna is being used for EVLA testing 24Jan 05:13:00 24Jan 13:26:00 Other 1.00 493.0 Antenna(s) 26 (Data: Lost): EVLA Not fringing at X or K bands as a result of testing performed earlier. Removed from observation. 24Jan 6:51:00 Your new operator is: Tom Briscoe 24Jan 6:53:00 Ran a backup on the Modcomp partition. End Time Total Program Time % Downtime Total Downtime (in minutes) (in minutes) 01/24/07 13:26:00 13473.0 7.4% 992.0