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CLEAN_STOP

      CLEAN_STOP  is  a  2-elements  character string that defines the Clean
    stopping criterium.

    If  CLEAN_STOP  is  not  empty,  it  supersedes  the  older  CLEAN_ARES,
    CLEAN_FRES  and  CLEAN_NITER variables (and their even older ARES, FRES,
    NITER historical equivalent), and even the CLEAN_NKEEP variable, provid-
    ing a more flexible syntax to specify the stopping criterium.

    The general syntax is
      LET CLEAN_STOP Value [Unit]
      LET CLEAN_STOP   1 Sigma     Indicates stopping at 1 times the noise level
      LET CLEAN_STOP   10 mJy      Indicates stopping at 0.01 Jy/beam
      LET CLEAN_STOP   1  %        Indicates stopping at 0.01 of the peak value
      LET CLEAN_STOP   100 Iterations  Set the max number of iterations to 100
      LET CLEAN_STOP   20 Stop     Indicates convergence is tested over 20 itera
    If  no  unit is specified, the last specified unit is used instead. Sub-
    units (mJy, Jy, milliJy, microJy, etc...)  are allowed for convenience.

    CLEAN_STOP overwrites the previously specified  CLEAN_ARES,  CLEAN_FRES,
    CLEAN_NITER and CLEAN_NKEEP values when (and only when) CLEAN is execut-
    ed.


    2 CLEAN_TRUNCATE

      Fraction of peak response of the primary beams  coverage  under  which
    the Sky brightness image is blanked in a Mosaic deconvolution.

      It is also used as a default truncation value in the PRIMARY command.

    The default is 0.2.


Gildas manager 2023-06-01