Content-type: text/html Manpage of mossdi2

mossdi2

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NAME

mossdi2 - Mosaic Steer CLEAN algorithm  

PERSON RESPONSIBLE

mxr  

CATEGORIES

deconvolution  

DESCRIPTION

MOSSDI is a MIRIAD task which performs a Steer CLEAN on a mosaiced image or cube.  

PARAMETERS

map
The input dirty map, which should have units of Jy/beam. No default.
beam
The input dirty beam. No default
model
An initial model of the deconvolved image. The default is 0.
out
The name of the output map. The units of the output will be Jy/pixel.
gain
CLEAN loop gain. The default is 0.1.
niters
The maximum number of iterations. The default is 100.
cutoff
Iterating stops if the maximum sigma in the residual falls below this value. The units of this are sigma. Each pixel in the residual is scaled by the theoretical sensitivity to determine its sigma value. default is 0.
clip
This sets the relative clip level. Values are typically 0.75 to 0.9. The default is 0.9.
region
The standard region of interest keyword. See the help on "region" for more information. The default is the entire image.
options
Extra processing options. There is just one of these at the moment.
  positive   Constrain the deconvolved image to be positive valued.
maxmiter
Maximum number of minor iterations for which change in sqrt(thresh) is < eps; if maxmiter is exceeded, deconvolution of plane terminates. In some cases, mossdi doesn't make it to rmsfac if iter is large, it can run for hours and hours and hours. maxmiter and eps can be used to keep mossdi from wasting time. Default: 20
eps
Deconvolution terminates if the change in sqrt(thresh) is less than eps for maxmiter consecutive minor iterations Default: 0.0001
log
Logfile with a summary of the deconvolution for each plane. Default: mossdi2_iteration.log


 

Index

NAME
PERSON RESPONSIBLE
CATEGORIES
DESCRIPTION
PARAMETERS

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Time: 18:35:38 GMT, July 05, 2011