; VLANT
;---------------------------------------------------------------
;! applies VLA/EVLA antenna position corrections from OPs files
;# Task Calibration VLA
;-----------------------------------------------------------------------
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;;
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;-----------------------------------------------------------------------
VLANT     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
VLANT    Task to apply VLA antenna position corrections from OPs
INNAME                             Input UV file name (name)
INCLASS                            Input UV file name (class)
INSEQ             0.0     9999.0   Input UV file name (seq. #)
INDISK            0.0        9.0   Input UV file disk unit #
SUBARRAY          0.0              Input subarray = AN file
GAINVER                            Input CL table 0=>high
----------------------------------------------------------------
VLANT
Task:  This task determines the antenna position corrections applied
       by the VLA operations staff after your observation that apply
       to that observation.  It copies an input CL table and applies
       these antenna position corrections to the antenna phases.

       WARNING: THIS TASK WILL CHANGE THE ANTENNA TABLE.  Careful
       observers might wish to make a copy of the AN table (e.g. with
       TASAV) before running VLANT.

       This task works with data from the VLA Correlator through
       January 2010 and for the EVLA correlator thereafter.  Note that
       the coordinate system used in the two environments is
       different, so the numbers in the tables are different.  The
       two environments therefore use files by slightly different
       names.
Adverbs:
  INNAME.....Input UV file name (name).      Standard defaults.
  INCLASS....Input UV file name (class).     Standard defaults.
  INSEQ......Input UV file name (seq. #).    0 => highest.
  INDISK.....Disk drive # of input UV file.  0 => any.
  SUBARRAY...Which subarray to correct.  This selects the AN table
             that will be considered and updated.
  GAINVER....Input CL table version. If GAINVER is equal zero or
             greater than the total number of the CL tables
             then GAINVER is equal to the last existing CL table.
             A new CL table will always be created if any corrections
             are made.
----------------------------------------------------------------
