romanimpreprocess.utils.coordutils

Coordinate system utilities.

Functions

pixelarea

Computes pixel area from a WCS.

Functions

pixelarea(inwcs[, N])

Generates an (N,N)-shaped array of the solid angles of the pixels.

Module Contents

pixelarea(inwcs, N=4088)[source]

Generates an (N,N)-shaped array of the solid angles of the pixels.

Parameters:

  • inwcs (astropy.wcs.WCS or galsim.BaseWCS or gwcs.wcs.WCS) – The input WCS.

  • N (int, optional) – The size of the image.

Returns:

The area in steradians, shape (N,N).

Return type:

np.array of float