Description
Compute the model visibility for a specified source flux density, and
insert into the MODEL_DATA column. The source flux density for
a set of standard flux density reference sources may optionally
be pre-computed, by setting the input flux density to -1 (the default).
At present, these include 3C286, 3C48, 3C147, 3C138, and 1934-638.
In this case, if the source is not in this set, an unpolarized
flux density of 1 Jy will be assumed. Users may also specify
standard='SOURCE' to use the model(s) in the SOURCE_MODEL column of the
SOURCE subtable.
Arguments
| fieldid |
in |
Field Id (1-relative) |
|
|
Allowed: |
Int |
|
|
Default: |
-1 |
| spwid |
in |
Spectral Window Id. (1-relative) |
|
|
Allowed: |
Int |
|
|
Default: |
-1 |
| fluxdensity |
in |
Specified flux density (I,Q,U,V) in Jy |
|
|
Allowed: |
Vector of Doubles |
|
|
Default: |
-1 (lookup the value; use 1.0 if not found) |
| standard |
in |
Flux density standard |
|
|
Allowed: |
String:'Baars'|'Perley 90'|'Perley-Taylor 95'|'Perley-Taylor 99'|'SOURCE' |
Returns
Bool
Example
imgr.setjy(fieldid=2, spwid=-1, fluxdensity=[2.6,0.2,0.3,0.5],standard='Baars')
Compute the model visibility for field id. 2 to the specified
point-source (I,Q,U,V) for all spectral windows id.'s on the
Baars flux density scale.
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2006-10-15
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