1 UV_CENTER
        UV_CENTER

    Find the centroid of (centro-symmetric) emission from a UV table.
2 UVDATA$
        TASK\CHARACTER "Input (Transposed) UV table" INPUT$

    The input UV table in transposed order (i.e. a  .TUV  file,  with  first
    axis RANDOM, second axis UV-DATA.
2 LIMITS$
        TASK\REAL "Search area (Xmin, Xmax, Ymin, Ymax)" LIMITS$[4]

    The search area (in radians).
2 CHANNELS$[2]
        TASK\INTEGER "First and last channels" CHANNELS$[2]

    First and last channel to be used
2 GRID$
        TASK\INTEGER "Size of grid search" GRID$ 1

    Number of cells of the search grid along each axis. Linear  minimization
    is  used  within  each  grid cell. Grid cells should be less than half a
    beam defined by the smallest baseline. Typically cells of 5  arcsec  are
    fine.
2 OUTPUT$
        TASK\CHARACTER "Output file name" OUTPUT$

    The output file name. This file contains
        Column    Content
        1         Velocity in km/s
        2         Final RMS
        3         X offset
        4         Error on X
        5         Normalized error on X
        6         Y offset
        7         Error on Y
        8         Normalized error on Y
    where all coordinates and errors are in radians. Normalized  errors  are
    errors corresponding to a deviation equal to the final RMS.
1 END