ExtendedPsfStackTask

class lsst.pipe.tasks.extended_psf.ExtendedPsfStackTask(initInputs=None, *args, **kwargs)

Bases: PipelineTask

Stack candidate cutouts to produce an extended PSF model.

Methods Summary

run(extended_psf_candidates)	Run the stacking task to produce an extended PSF model.
runQuantum(butlerQC, inputRefs, outputRefs)	Do butler IO and transform to provide in memory objects for tasks run method.

Methods Documentation

run(extended_psf_candidates: ExtendedPsfCandidates)

Run the stacking task to produce an extended PSF model.

Parameters

extended_psf_candidatesExtendedPsfCandidates

Set of preprocessed cutouts, each centered on a single star.

Returns

extended_psf :

ExtendedPsfImage or None

The extended PSF model if stacking succeeds; None if stacking was unsuccessful (e.g, no valid candidates).

runQuantum(butlerQC, inputRefs, outputRefs)

Do butler IO and transform to provide in memory objects for tasks run method.

Parameters

butlerQCQuantumContext

A butler which is specialized to operate in the context of a lsst.daf.butler.Quantum.

inputRefsInputQuantizedConnection

Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined input/prerequisite connections.

outputRefsOutputQuantizedConnection

Datastructure whose attribute names are the names that identify connections defined in corresponding PipelineTaskConnections class. The values of these attributes are the lsst.daf.butler.DatasetRef objects associated with the defined output connections.