Is it possible to get the zeropoint of a deep coadd image?
I have generated image cutouts of a range of sources in all photometric bands (using SIA), but the zeropoints are not present in the FITS file header.
I have seen in the documentation that it is is possible to get the zeropoint of a single visit image using the CcdVisist table, but can’t find any information of whether this is available for a deep coadd image?