AIPS NRAO AIPS HELP file for STFACTOR in 31DEC18



As of Tue Jan 16 4:42:23 2018



HELP SECTION

STFACTOR
Type: Adverb  (Real)
Use:  A multiplication factor.  In plot tasks, it is used to
      scale the plotting of symbols for objects from an ST
      (stars) table.  If STFACTOR = 0, no symbols are plotted.
      If STFACTOR not = 0, the symbol sizes (in arc sec) in the
      file are scaled by abs(STFACTOR) and plotted.  If STFACTOR
      < 0, any labels in the file are also plotted.
Null value:  0 => no plot.
Plot tasks:
  CNTR....Makes plot file of image contours.
  GREYS...Makes plot file of image grey-scale plus contours.
  KNTR....Makes plot file of multiple planes of image contours.
  PCNTR...Makes plot file of image contours and polarization
          vectors.
  PROFL...Makes plot file of image profiles.
Other tasks:
  SDCLN...Does image deconvolution using the Clark CLEAN
          algorithm followed by a modified Steer-Dewdney-Ito
          CLEAN.  STFACTOR is the loop gain (fraction of each
          pixel's flux taken as a component flux) during the SDI
          phase of the deconvolution.  It must be <= the
          default. 0 => lower of 0.9 * (1-CUTOFF) and GAIN.

EXPLAIN SECTION


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