AIPS HELP file for CCSEL in 31DEC22
As of Sun Mar 26 10:06:33 2023
CCSEL: Select significant CC components
INNAME Main input file (name).
INCLASS Main input file (class).
INSEQ 0.0 9999.0 Main input file (seq. #).
0 => high
INDISK 0.0 9.0 Disk unit #. 0 => any
INVERS Input file version no.
OUTVERS Output file version.
BCOUNT 0.0 99999.0 Beginning row to copy
ECOUNT 0.0 99999.0 Last row to copy: 0 => end
RADIUS Radius to sum (asec)
CUTOFF Minimum summed flux
< 0 -> min absolute value
Use: CCSEL is intended to filter out weak isolated CLEAN
components which can cause a signifigant bias.
This task sums the flux of all components within a
specified distance of each component and then selects
those components for which this sum exceeds a specified
threshold. The fluxes of the components are not
There is currently a limit of 1,000,000 components, using
CCMRG can help reduce the number.
Note: the time required to run increases quadratically
with the number of components.
INNAME......Main file name (name). Standard defaults.
INCLASS.....Main file name (class). Standard defaults.
INSEQ.......Main file name (seq. #). 0 => highest
INDISK......Disk drive # of image. 0 => any
INVERS......Input extension file version #.
OUTVERS.....Output extension file version #. 0=>make new
BCOUNT......Beginning row number to be included .
ECOUNT......Last row number included. 0 = highest.
RADIUS......The radius in arcseconds within which to sum
components. NO DEFAULT.
CUTOFF......The minimum acceptable summed flux. If the value
is negative then summed fluxes with magnitudes
larger than ABS(CUTOFF) are accepted.