[AstroPy] WCS reprojection

[David Berry]

On 11 June 2014 19:10, Stuart Mumford <stuart at mumford.me.uk> wrote:
> Hello,
>
> I am looking for a way to change the projection of my solar image data.
> Specifically to re-project my TAN projected helioprojective Cartesian data
> array into a CAR Plate carree projected heliographic map.

pyast can do that sort of thing. The attached script will re-project a
given input image so that it aligned with a given reference image. So
if your input image is in TAN projection and you can create a
reference image in CAR projection, it should do the job. If you do not
have a CAR image, the script could be modified to create a suitable
header for you from scratch.

David


> The only thing that I could find that looks like it might be able to do this
> is Kapteyn's coord_map function
> (https://www.astro.rug.nl/software/kapteyn/wcs.html#function-coordmap). Are
> there other options? Is this possible using astropy.wcs?
>
> Any suggestions are welcome.
>
> Thanks
> Stuart
>
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