lsst.ap.association

The ap_association package provides tools for associating DIAObjects to DIASources, persisting this association, and computing DIAObject summary statistics.

Contributing

lsst.ap.association is developed at https://github.com/lsst/ap_association. You can find Jira issues for this module under the ap_association component.

Task reference

Tasks

FractionUpdatedDiaObjectsMetricTask

Task that computes the fraction of previously created DIAObjects that have a new association in this image, visit, etc..

NumberNewDiaObjectsMetricTask

Task that computes the number of DIASources that create new DIAObjects in an image, visit, etc..

NumberUnassociatedDiaObjectsMetricTask

Task that computes the number of previously-known DIAObjects that do not have detected DIASources in an image, visit, etc..

TotalUnassociatedDiaObjectsMetricTask

Task that computes the number of DIAObjects with only one associated DIASource.

Python API reference

lsst.ap.association Package

Functions

getCcdVisitSchemaSql()	Define the schema for the CcdVisit table.
make_dia_forced_source_schema()	Define and create the minimal schema required for a DiaForcedSource.
make_dia_object_schema([filter_names])	Define and create the minimal schema required for a DIAObject.
make_dia_source_schema()	Define and create the minimal schema required for a DIASource.

Classes

AssociationConfig	Config class for AssociationTask.
AssociationTask(**kwargs)	Associate DIAOSources into existing DIAObjects.
Chi2DiaPsFlux(config, name, metadata)	Compute chi2 of diaSource fluxes.
Chi2DiaPsFluxConfig
DiaForcedSourceTask(**kwargs)	Task for measuring and storing forced sources at DiaObject locations in both difference and direct images.
DiaForcedSourcedConfig	Configuration for the generic DiaForcedSourcedTask class.
DiaObjectCalculationConfig	Config class for the catalog calculation driver task.
DiaObjectCalculationPlugin(config, name, …)	Base class for DIA catalog calculation plugins.
DiaObjectCalculationPluginConfig	Default configuration class for DIA catalog calculation plugins.
DiaObjectCalculationTask([plugMetadata])	Run plugins which operate on a catalog of DIA sources.
ErrMeanDiaPsFlux(config, name, metadata)	Compute the mean of the dia source errors.
ErrMeanDiaPsFluxConfig
HTMIndexDiaPosition(config, name, metadata)	Compute the mean position of a DiaObject given a set of DiaSources.
HTMIndexDiaPositionConfig
LinearFitDiaPsFlux(config, name, metadata)	Compute fit a linear model to flux vs time.
LinearFitDiaPsFluxConfig
MadDiaPsFlux(config, name, metadata)	Compute median absolute deviation of diaSource fluxes.
MadDiaPsFluxConfig
MapApDataConfig	Configuration for the generic MapApDataTask class.
MapApDataTask(inputSchema, outputSchema, …)	Generic mapper class for copying values from a science pipelines catalog into a product for use in ap_association or the PPDB.
MapDiaSourceConfig	Config for the DiaSourceMapperTask
MapDiaSourceTask(inputSchema, **kwargs)	Task specific for copying columns from science pipelines catalogs, calibrating them, for use in ap_association and the PPDB.
MaxSlopeDiaPsFlux(config, name, metadata)	Compute the maximum ratio time ordered deltaFlux / deltaTime.
MaxSlopeDiaPsFluxConfig
MeanDiaPosition(config, name, metadata)	Compute the mean position of a DiaObject given a set of DiaSources.
MeanDiaPositionConfig
MinMaxDiaPsFlux(config, name, metadata)	Compute min/max of diaSource fluxes.
MinMaxDiaPsFluxConfig
NumDiaSourcesDiaPlugin(config, name, metadata)	Compute the total number of DiaSources associated with this DiaObject.
NumDiaSourcesDiaPluginConfig
PercentileDiaPsFlux(config, name, metadata, …)	Compute percentiles of diaSource fluxes.
PercentileDiaPsFluxConfig
SigmaDiaPsFlux(config, name, metadata)	Compute scatter of diaSource fluxes.
SigmaDiaPsFluxConfig
SigmaDiaTotFlux(config, name, metadata)	Compute scatter of diaSource fluxes.
SigmaDiaTotFluxConfig
SimpleSourceFlagDiaPlugin(config, name, metadata)	Find if any DiaSource is flagged.
SimpleSourceFlagDiaPluginConfig
SkewDiaPsFlux(config, name, metadata)	Compute the skew of diaSource fluxes.
SkewDiaPsFluxConfig
StetsonJDiaPsFlux(config, name, metadata)	Compute the StetsonJ statistic on the DIA point source fluxes.
StetsonJDiaPsFluxConfig
UnpackPpdbFlags(flag_map_file, table_name)	Class for unpacking bits from integer flag fields stored in the Ppdb.
WeightedMeanDiaPsFlux(config, name, metadata)	Compute the weighted mean and mean error on the point source fluxes of the DiaSource measured on the difference image.
WeightedMeanDiaPsFluxConfig
WeightedMeanDiaTotFlux(config, name, metadata)	Compute the weighted mean and mean error on the point source fluxes forced photometered at the DiaSource location in the calibrated image.
WeightedMeanDiaTotFluxConfig

lsst.ap.association.metrics Module

Classes

NumberNewDiaObjectsMetricTask(**kwargs)	Task that computes the number of DIASources that create new DIAObjects in an image, visit, etc..
NumberUnassociatedDiaObjectsMetricTask(**kwargs)	Task that computes the number of previously-known DIAObjects that do not have detected DIASources in an image, visit, etc..
FractionUpdatedDiaObjectsMetricTask(**kwargs)	Task that computes the fraction of previously created DIAObjects that have a new association in this image, visit, etc..
TotalUnassociatedDiaObjectsMetricTask(**kwargs)	Task that computes the number of DIAObjects with only one associated DIASource.