LoadDiaCatalogsTask

class lsst.ap.association.LoadDiaCatalogsTask(**kwargs)

Bases: PipelineTask

Retrieve DiaObjects and associated DiaSources from the Apdb given an input exposure.

Methods Summary

loadDiaForcedSources(diaObjects, region, ...)	Load DiaObjects from the Apdb based on their HTM location.
loadDiaObjects(region, schema)	Load DiaObjects from the Apdb based on their HTM location.
loadDiaSources(diaObjects, region, dateTime, ...)	Load DiaSources from the Apdb based on their diaObjectId or location.
run(regionTime)	Preload all DiaObjects and DiaSources from the Apdb given the current exposure.

Methods Documentation

loadDiaForcedSources(diaObjects, region, dateTime, schema)

Load DiaObjects from the Apdb based on their HTM location.

Parameters

diaObjectspandas.DataFrame

DiaObjects loaded from the Apdb.

regionsphgeom.Region

Region of interest.

dateTimeastropy.time.Time

Time of the current visit

schema‘dict’ of lsst.dax.apdb.apdbSchema.ApdbSchema

A dict of the schemas in the apdb.

Returns

diaObjectspandas.DataFrame

DiaObjects loaded from the Apdb that are within the area defined by pixelRanges.

loadDiaObjects(region, schema)

Load DiaObjects from the Apdb based on their HTM location.

Parameters

regionsphgeom.Region

Region of interest.

schema‘dict’ of lsst.dax.apdb.apdbSchema.ApdbSchema

A dict of the schemas in the apdb.

Returns

diaObjectspandas.DataFrame

DiaObjects loaded from the Apdb that are within the area defined by pixelRanges.

loadDiaSources(diaObjects, region, dateTime, schema)

Load DiaSources from the Apdb based on their diaObjectId or location.

Variable used to load sources is set in config.

Parameters

diaObjectspandas.DataFrame

DiaObjects loaded from the Apdb that are within the area defined by pixelRanges.

regionsphgeom.Region

Region of interest.

dateTimeastropy.time.Time

Time of the current visit

schema‘dict’ of lsst.dax.apdb.apdbSchema.ApdbSchema

A dict of the schemas in the apdb.

Returns

DiaSourcespandas.DataFrame

DiaSources loaded from the Apdb that are within the area defined by pixelRange and associated with diaObjects.

run(regionTime)

Preload all DiaObjects and DiaSources from the Apdb given the current exposure.

Parameters

regionTimelsst.pipe.base.utils.RegionTimeInfo

A serializable container for a sky region and timespan.

Returns

resultlsst.pipe.base.Struct

Results struct with components.

• diaObjects : Complete set of DiaObjects covering the input exposure padded by pixelMargin. DataFrame is indexed by the diaObjectId column. (pandas.DataFrame)

• diaSources : Complete set of DiaSources covering the input exposure padded by pixelMargin. DataFrame is indexed by diaObjectId, band, diaSourceId columns. (pandas.DataFrame)

• diaForcedSources : Complete set of forced photometered fluxes

on the past 12 months of difference images at DiaObject locations.

Raises

RuntimeError

Raised if the Database query failed to load DiaObjects.