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vpmanager.setpbimage - Function

2.3.2 Make a vp/pb from a user-supplied image


Description

Experimental: Supply an image of the E Jones elements. The format of the image is:

Shape
nx by ny by 4 complex polarizations (RR, RL, LR, LL or XX, XY, YX, YY) by 1 channel.
Direction coordinate
Az, El
Stokes coordinate
All four “stokes” parameters must be present in the sequence RR, RL, LR, LL or XX, XY, YX, YY.
Frequency
Only one channel is currently needed - frequency dependence beyond that is ignored.

If a compleximage is specified the real and imaginary images is to be left empty.

The other option is to provide the real and imaginary part of the E-Jones as seperale float images On that case one or two images may be specified - the real (must be present) and imaginary parts (optional).

Note that beamsquint must be intrinsic to the images themselves. This will be accounted for correctly by regridding of the images from Az-El to Ra-Dec according to the parallactic angle.

antnames is the Vector of names for which this response pattern apply ’*’ is for all The name has to match exactly the name of the Antennas in the ANTENNA table of the MS with which you want to use this VPManager table or object.

Arguments





Inputs

telescope

Which telescope in the MS will use this vp/pb?

allowed:

string

Default:

VLA

othertelescope

If telescope==”OTHER”, specify name here

allowed:

string

Default:

dopb

Should we apply the vp/pb to this telescope’s data?

allowed:

bool

Default:

true

realimage

Real part of vp as an image

allowed:

string

Default:

imagimage

Imaginary part of vp as an image

allowed:

string

Default:

compleximage

complex vp as an image of complex numbers; if specified realimage and imagimage are ignored

allowed:

string

Default:

antnames

antenna names for which this pattern is valid; default is all antennas

allowed:

stringArray

Default:

*

Returns
record
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