PsfexPsfDeterminerTask#

class lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerTask(config, schema=None, **kwds)#

Bases: BasePsfDeterminerTask

Methods Summary

determinePsf(exposure, psfCandidateList[, ...])

Determine a PSFEX PSF model for an exposure given a list of PSF candidates.

Methods Documentation

determinePsf(exposure, psfCandidateList, metadata=None, flagKey=None)#

Determine a PSFEX PSF model for an exposure given a list of PSF candidates.

Parameters#

exposure: lsst.afw.image.Exposure

Exposure containing the PSF candidates.

psfCandidateList: iterable of lsst.meas.algorithms.PsfCandidate

Sequence of PSF candidates typically obtained by detecting sources and then running them through a star selector.

metadata: metadata, optional

A home for interesting tidbits of information.

flagKey: lsst.afw.table.Key, optional

Schema key used to mark sources actually used in PSF determination.

Returns#

psf: lsst.meas.extensions.psfex.PsfexPsf

The determined PSF.