AIPS NRAO AIPS HELP file for VTEST in 31DEC19



As of Tue Dec 11 22:37:32 2018


VTEST: Measures velocity discrepancy across fields

INPUTS

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 #
CPARM                              Compute controls
                                   (1-3) start,stop,incr RA
                                   (4-6) start,stop,incr Dec
                                   (7-9) start,stop,incr UT
DPARM                              More controls
                                   (1-3) start,stop,incr day #
                                   (4) Year (0 -> 1997)
                                   (5) Field size (degrees)
                                   (6) > 0 -> use earth centered
                                       ignore AN file
                                   (7) > 0 max over UT and Day
                                       <= 0 max over RA and Dec

HELP SECTION

VTEST
Task:  Test range of LSR and heliocentric velocities in DPARM(5) degree
       images maximized over a range of RAs and Decs for specific UTs
       and dates.  The uv data set is used solely to provide an AN file
       to define the coordinates of the telescope.
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.
  CPARM......Controls:
             (1-3) Start, stop, increment in RA - degrees
                    0's =>  0, 350, 10
             (4-6) Start, stop, increment in dec - degrees
                    0's => -30, 85, 5
             (7-9) Start, stop, increment in UT - hours
                    0's => 0, 23, 6
  DPARM......More controls
             (1-3) Start, stop, increment day # - day in year
                    0's => 0, 350, 30
             (4) Year number (< 1950 => 1997)
             (5) Field size in degrees - position differences
                    are done as DPARM(5)/2 in ra and dec
                    0 => 2.
             (6) If > 0, ignore the uv file and take the antenna
                    coordinates to be 0.  This means an Earth-centered
                    system such as is used for VLBI.
             (7) > 0 => find max velocity differences over UTs and day
                    numbers for each Ra and Dec
                 <= 0 => find max velocity differences over RAs and Decs
                    for each UT and day number

EXPLAIN SECTION


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