AIPS HELP file for RADIUS in 31DEC25

As of Wed Dec 11 9:49:32 2024

HELP SECTION

RADIUS
Type:  Adverb  (scalar)
Use:   This adverb specifies a radius, usually a radius in an image in
       pixels.
Null value:
       0   => very large
Tasks:
   ALBUS.....Calculate ionospheric delay and Faraday rotation using
             ALBUS.  RADIUS is max distance for data sources in km.
   CCSEL.....Select signifigant CC components.  RADIUS controls the
             area over which Clean components are summed (in asec).
   IMFIT.....Fits gaussians to portions of an image - RADIUS controls
             fitting for the actual RMS which scales the error
             estimates.
   JMFIT.....Fits gaussians to portions of an image - RADIUS controls
             fitting for the actual RMS which scales the error
             estimates.
   SPCOR.....Task to correct an image for a primary beam and spectral
             index.  RADIUS is the radius in pixels over which the
             spectral index images are averaged.

EXPLAIN SECTION