MeasurePsfTask¶

Python API summary¶

from lsst.pipe.tasks.measurePsf import MeasurePsfTask

classMeasurePsfTask(schema=None, **kwargs): A task that selects stars from a catalog of sources and uses those to measure the PSF...

attributeconfig: Access configuration fields and retargetable subtasks.

methodrun(exposure, sources, expId=0, matches=None): Measure the PSF...

See also

See the MeasurePsfTask API reference for complete details.

Retargetable subtasks¶

makePsfCandidates¶

Default: lsst.meas.algorithms.makePsfCandidates.MakePsfCandidatesTask
Field type: ConfigurableField

Task to make psf candidates from selected stars.

psfDeterminer¶

Default

'psfex'

Field type

Single-selection RegistryField

Choices

'pca': lsst.meas.algorithms.pcaPsfDeterminer.PcaPsfDeterminerTask
'psfex': lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerTask
'piff': lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerTask

PSF Determination algorithm

reserve¶

Default: lsst.meas.algorithms.reserveSourcesTask.ReserveSourcesTask
Field type: ConfigurableField

Reserve sources from fitting

starSelector¶

Default

'objectSize'

Field type

Single-selection RegistryField

Choices

'science': lsst.meas.algorithms.sourceSelector.ScienceSourceSelectorTask
'references': lsst.meas.algorithms.sourceSelector.ReferenceSourceSelectorTask
'null': lsst.meas.algorithms.sourceSelector.NullSourceSelectorTask
'objectSize': lsst.meas.algorithms.objectSizeStarSelector.ObjectSizeStarSelectorTask
'flagged': lsst.meas.algorithms.flaggedSourceSelector.FlaggedSourceSelectorTask

Star selection algorithm

Configuration fields¶

No configuration fields.