jwst_crds_photom_scale¶
- grizli.utils.jwst_crds_photom_scale(hdul, context='jwst_1130.pmap', update=True, verbose=False)[source]¶
Scale factors between different JWST CRDS_CONTEXT
- Parameters
- hdul
astropy.io.fits.HDUList Exposure file HDUList, which has header keywords like CRDS_CTX, PHOTMJSR, etc.
- contextstr
Target CRDS context version
- updatebool
Scale photometry header keywords by the ratio of NEW_PHOTMJSR / OLD_PHOTMJSR
- verbose: bool
Messaging
- hdul
- Returns
- scalefloat
Relative photometry scaling factor NEW_PHOTMJSR / OLD_PHOTMJSR. Defaults to 1.0 if not a JWST instrument or if certain necessary header keywords not found