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0.1.22 ft

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Synopsis Insert a source model into the MODEL_DATA column of a visibility set: Description

A source model (souce.model image) or components list is converted into a model visibility that is inserted into the MODEL_DATA column. This is needed to use resolved source in gaincal and in fluxscale. (Setjy will automatically make this ft step.)

The sources currently available are 3C48, 3C138, 3C147, 3C286 at 1.4, 5.0, 8.4, 15, 22, 43 GHz. Their location is site dependent. In Charlottesville and at the AOC, the models are in /usr/lib/casapy/data/nrao/VLA/CalModels.

Arguments





Inputs

vis

Name of input visibility file (MS)

allowed:

string

Default:

field

Field selection

allowed:

string

Default:

spw

Spw selection

allowed:

string

Default:

model

Name of input model image

allowed:

string

Default:

complist

Name of component list

allowed:

string

Default:

incremental

Add to the existing MODEL_DATA column?

allowed:

bool

Default:

False

Returns
void

Example

 
 
       A source model (souce.model image) or components list is converted into a  
       model visibility that is inserted into the MODEL_DATA column.  This is  
       needed to use resolved source in gaincal and in fluxscale.  
 
       Setjy will automatically make this ft step on the  
       sources currently available are 3C48, 3C138, 3C147, 3C286  
       at 1.4, 5.0, 8.4, 15, 22, 43 GHz.  Their location is site  
       dependent.  In Charlottesville and at the AOC, the models are  
       in /usr/lib(lib64)/casapy/data/nrao/VLA/CalModels.  
 
 
       Keyword arguments:  
       vis -- Name of input visibility file  
              default: none; example: vis=’ngc5921.ms’  
       field -- Field name list  
               default: ’’ ==> all  
               NOTE: BUT, only one source can be specified in a multi-source vis.  
               field = ’1328+307’  specifies source ’1328+307’  
               field = ’4’ specified field with index 4  
       spw -- Spw selection  
               default: spw = ’’ (all spw)  
       model -- Name of input model image  
               default: ’’ ==> None;  
               example: model=’/usr/lib/casapy/data/nrao/VLA/CalModels/3C286_X.im’  
               Note: The model visibilities are scaled from the model frequency  
                     to the observed frequency of the data.  
 
       complist -- Name of component list  
               default: None; ; example: complist=’test.cl’  
               component lists are difficult to make.  
       incremental -- Add model visibility to the existing MODEL_DATA visibilties  
               default: False; example: incremental=True  
 
 
 
 
 
 
 

Please send any comments or questions about CASA or AIPS++ to aips2-requests@nrao.edu

Copyright © 2008 Associated Universities Inc., Washington, D.C.

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