astropy.wcs.utils.add_stokes_axis_to_wcs(wcs, add_before_ind)[source]

Add a new Stokes axis that is uncorrelated with any other axes.

wcs : WCS

The WCS to add to

add_before_ind : int

Index of the WCS to insert the new Stokes axis in front of. To add at the end, do add_before_ind = wcs.wcs.naxis The beginning is at position 0.

A new WCS instance with an additional axis