uvmodelfit – Fit a single component source model to the uv data – modeling, calibration task

Description

Fit a single component source model to the uv data

Parameters

Title

Parameter	Default	Description
vis	''
field	''
spw	''
selectdata	True
timerange	''
uvrange	''
antenna	''
scan	''
msselect	''
niter	int(5)
comptype	'P'
sourcepar	numpy.array( [ float(1.0),float(0.0),float(0.0) ] )
varypar	numpy.array( [  ] )
outfile	''

Parameter Explanations

vis

''

Name of input visibility file

field

''

Select field using field id(s) or field name(s)

spw

''

Select spectral window/channels

selectdata

True

Other data selection parameters

timerange

''

Select data based on time range

uvrange

''

Select data within uvrange (default units meters)

antenna

''

Select data based on antenna/baseline

scan

''

Scan number range

msselect

''

Optional complex data selection (ignore for now)

niter

int(5)

Number of fitting iterations to execute

comptype

'P'

component model type: P(oint), G(aussian), or D(isk)

sourcepar

numpy.array( [ float(1.0),float(0.0),float(0.0) ] )

Starting guess for component parameters (3 values for type P, 5 for G and D)

varypar

numpy.array( [  ] )

Control which parameters to let vary in the fit

outfile

''

Optional output component list table