UV_FIT-PROPER
Keywords: map

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UV_FIT-PROPER

            This task allows you to fit models directly through the UV visibili-
        ties. The models are either simple functions or linear  combinations  of
        simple  functions.   The results of the fitting process are the position
        offsets in R.A. and Dec (in arc second) of the  model  source  from  the
        phase reference center, and its flux (Jansky).  Depending on the fitting
        functions additional fit results are possible. Currently supported  dis-
        tributions and additional fit parameters are:

        POINT     Point source              : None
        E_GAUSS   Elliptic Gaussian source  : FWHM Axes (Major and Minor), Pos Ang
        C_GAUSS   Circular Gaussian source  : FWHM Axis
        C_DISK    Circular Disk             : Diameter
        E_DISK    Elliptical (inclined) Disk: Axis (Major and Minor), Pos Ang
        RING      Annulus                   : Diameter (Inner and Outer)
        EXPO      Exponential brightness    : FWHM Axis
        POWER-2   B = 1/r^2                 : FWHM Axis
        POWER-3   B = 1/r^3                 : FWHM Axis
        E_RING    Inclined Annulus          : Inner, Outer, Pos Ang, Ratio