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
Parameter |
Default |
Description |
|---|---|---|
vis |
|
Name of input visibility file |
field |
|
Select field using field id(s) or field name(s) |
spw |
|
Select spectral window/channels |
selectdata |
|
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 |
|
Number of fitting iterations to execute |
comptype |
|
component model type: P(oint), G(aussian), or D(isk) |
sourcepar |
|
Starting guess for component parameters (3 values for type P, 5 for G and D) |
varypar |
|
Control which parameters to let vary in the fit |
outfile |
|
Optional output component list table |
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