[AstroPy] Question about WCS distortion coefficients

[Paul Kuin]

see

Shupe, D.L., et al., 2005, Astronomical Data Analysis Soft-

ware and Systems XIV ASP Conference Series, Vol. 347, Proceedings of the
Conference held 24-27 October, 2004 in Pasadena, California, USA. Edited by
P. Shopbell, M. Britton, and R. Ebert. San Francisco: Astronomical Soci-
ety of the Pacific, 2005., p.491




On Tue, Dec 16, 2014 at 5:41 PM, Brian York <york at stsci.edu> wrote:
>
> Greetings,
>
> Given that I have the following data:
>         - RA
>         - DEC
>         - PA
>         - Plate Scale
> I can create a distortion-free WCS using astropy. If I also have:
>         - polynomial degree (2 or 3)
>         - X and Y coefficients (X10,X11,X20,X21,X22,X30-X33 if degree is
> 3, same
> for y)
>
> How do I go about modifying that WCS to include the necessary distortion
> information? Any assistance would be appreciated.
>
>         -Brian York
>
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>


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