AIPS NRAO AIPS HELP file for DGAUS in 31DEC21



As of Fri Dec 3 3:57:08 2021


DGAUS: Corrects UV model made from image for Clean beam

INPUTS

INNAME                             Input UV file name (name)
INCLASS                            Input UV file name (class)
INSEQ             0.0     9999.0   Input UV file name (seq. #)
INDISK            0.0        9.0   Input UV file disk unit #
IN2NAME                            Clean image name.
IN2CLASS                           Clean image class.
IN2SEQ            0.0     9999.0   Clean image seq. #
IN2DISK           0.0        9.0   Clean image disk number
OUTNAME                            Output UV file name (name)
OUTCLASS                           Output UV file name (class)
OUTSEQ           -1.0     9999.0   Output UV file name (seq. #)
OUTDISK           0.0        9.0   Output UV file disk unit #.
BMAJ              0.0              Major axis in asec
BMIN              0.0              Minor axis in asec
BPA                                Position angle in degrees
WEIGHTIT          0.0        2.0   Do correection to the
                                   WEIGHTIT power.
FACTOR            0.0              Maximum correction factor

HELP SECTION

DGAUS
Task:  When you make a model using a Clean image (UVSUB with CMODEL =
       'IMAG'), the resulting uv data have their amplitudes reduced by
       the Fourier transform of the Clean beam (neglecting the
       contribution of the residual image after Clean).  This task
       will correct amplitudes for this using a Clean beam provided
       either with adverbs BMAJ, BMIN, BPA or from a second input
       catalog image file.

Adverbs:
  INNAME.....Input UV file name (name).      Standard defaults.
  INCLASS....Input UV file name (class).     Standard defaults.
  INSEQ......Input UV file name (seq. #).    0 => highest.
  INDISK.....Disk drive # of input UV file.  0 => any.
  IN2NAME....Clean image name.  Used if BMAJ and/or BMIN is zero.
  IN2CLASS...Clean image class
  IN2SEQ.....Clean image sequence number.
  IN2DISK....Clean image sequence number.
  OUTNAME....Output UV file name (name).     Standard defaults.
  OUTCLASS...Output UV file name (class).    Standard defaults.
  OUTSEQ.....Output UV file name (seq. #).   0 => highest unique
  OUTDISK....Disk drive # of output UV file. 0 => highest with
             space for the file.
  BMAJ.......Clean beam major axis in asec
  BMIN.......Clean beam minor axis in asec
  BMAJ.......Clean beam position angle in degrees
  WEIGHTIT...If < 1 AND> 0, take the correction fator to the WEIGHTIT
             power.
  FACTOR.....Maximum correction factor:  < 2 => 1000.  The correction
             used is MIN (correction computed, FACTOR).

EXPLAIN SECTION


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