AIPS HELP file for RADIUS in 31DEC25
As of Mon Feb 17 11:04:09 2025
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.
QBEAM.....Plot holography data as contour image and outputs
interpolated image.
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