ssoflux – Fills the model column with the visibilities of a calibrator – modeling, calibration task

Description

*This is an experimental clone of setjy while flux calibration with
Solar System objects is being tested. It will eventually be merged back into setjy.*

The task places the model visibility amp and phase associated with a specified clean components image into the model column of the data set. The flux density (I,Q,U,V) for a point source calibrator can be entered explicitly.

Models are available for 3C48, 3C138, and 3C286 between 1.4 and 43 GHz. 3C147 is available above 13 GHz. These models are scaled to the precise frequency of the data. Only I models are presently available.

The location of the models is system dependent: At the AOC, the models are in the directory::/usr/lib/casapy/data/nrao/VLA/CalModels/ 3C286_L.im (egs)

ssoflux need only be run on the calibrator sources with a known flux density and/or model.

Parameters

Title
Parameter	Default	Description
vis	`''`
field	`''`
spw	`''`
modimage	`''`
fluxdensity	`int(-1)`
standard	`'Perley-Taylor 99'`

Parameter Explanations

vis

''

Name of input visibility file

field

''

Field name(s)

spw

''

Spectral window identifier (list)

modimage

''

File location for field model

fluxdensity

int(-1)

Specified flux density [I,Q,U,V]; -1 will lookup values

standard

'Perley-Taylor 99'

Flux density standard