FilterDiaSourceCatalogTask

class lsst.ap.association.FilterDiaSourceCatalogTask(*, config: PipelineTaskConfig | None = None, log: logging.Logger | LsstLogAdapter | None = None, initInputs: dict[str, Any] | None = None, **kwargs: Any)

Bases: PipelineTask

Filter sources from a DiaSource catalog based on their trail length, sky sources, and bad flags.

Methods Summary

run(diaSourceCat, diffImVisitInfo)

Filter sources from the supplied DiaSource catalog.

Methods Documentation

run(diaSourceCat, diffImVisitInfo)

Filter sources from the supplied DiaSource catalog.

DiaSources are filtered based on criteria including trail length, whether they are a sky source, and whether they have one or more bad flags. Any source which meets a filtering criteria is removed from the main output catalog and optionally saved in one or more separate output catalogs.

Parameters

diaSourceCatlsst.afw.table.SourceCatalog

Catalog of sources measured on the difference image.

diffImVisitInfo: lsst.afw.image.VisitInfo

VisitInfo for the difference image corresponding to diaSourceCat.

Returns

filterResults : lsst.pipe.base.Struct

filteredDiaSourceCatlsst.afw.table.SourceCatalog

The catalog of filtered sources.

rejectedDiaSourceslsst.afw.table.SourceCatalog

The catalog of rejected sources.

longTrailedDiaSourcesastropy.table.Table

DiaSources which have trail lengths greater than max_trail_length*exposure_time.