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Name

wcs - World Coordinate Systems

Synopsis

wcs [parameter=value]

Description

wcs is the World Coordinate System.

Polarization

Polarization is an exceptional case, since it’s enumerated (XX, YY, LL, etc.), but the community has assigned integer values such that a usual NAXIS,CRPIX,CRVAL,CDELT,CTYPE can be used. This is the AIPS/FITS convention.
1    I    Standard Stoked Unpolarized
2    Q
3    U
4    V
-1    RR    Right-right circular
-2    LL
-3    RL
-4    LR
-5    XX    X parallel linear
-6    YY
-7    XY
-8    YX

See Also

wcs(1NEMO) , worldpos(3NEMO) , ccdsky(1NEMO) , ccdfits(1NEMO) , impos(1MIRIAD) , xy2sky(1WCSTOOLS) , sky2xy(1WCSTOOLS)

Author

Peter Teuben

Update History


15-dec-2019    written        PJT


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