PiffPsfDeterminerTask#

class lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerTask(config, schema=None, **kwds)#

A measurePsfTask PSF estimator using Piff as the implementation.

Methods Summary

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

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

Methods Documentation

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

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

Parameters#

exposurelsst.afw.image.Exposure: Exposure containing the PSF candidates.
psfCandidateListlist of lsst.meas.algorithms.PsfCandidate: A sequence of PSF candidates typically obtained by detecting sources and then running them through a star selector.
metadatalsst.daf.base import PropertyList or None, optional: A home for interesting tidbits of information.
flagKeystr or None, optional: Schema key used to mark sources actually used in PSF determination.