ForcedPhotCcdTask

ForcedPhotCcdTask performs forced measurement on an image from a CCD.

Python API summary

from lsst.meas.base.forcedPhotCcd import ForcedPhotCcdTask
classForcedPhotCcdTask(butler=None, refSchema=None, initInputs=None, **kwds)

A pipeline task for performing forced measurement on CCD images...

attributeconfig

Access configuration fields and retargetable subtasks.

methodrun(measCat, exposure, refCat, refWcs, exposureId=None)

Perform forced measurement on a single exposure...

See also

See the ForcedPhotCcdTask API reference for complete details.

Retargetable subtasks

applyApCorr

Default
lsst.meas.base.applyApCorr.ApplyApCorrTask
Field type
ConfigurableField
Subtask to apply aperture corrections

catalogCalculation

Default
lsst.meas.base.catalogCalculation.CatalogCalculationTask
Field type
ConfigurableField
Subtask to run catalogCalculation plugins on catalog

measurement

Default
lsst.meas.base.forcedMeasurement.ForcedMeasurementTask
Field type
ConfigurableField
subtask to do forced measurement

Configuration fields

coaddName

Default
'deep'
Field type
str Field
coadd name: typically one of deep or goodSeeing

connections

Data type
lsst.pipe.base.config.Connections
Field type
ConfigField
Configurations describing the connections of the PipelineTask to datatypes

doApCorr

Default
True
Field type
bool Field
Run subtask to apply aperture corrections

doApplyExternalPhotoCalib

Default
False
Field type
bool Field
Whether to apply external photometric calibration via an lsst.afw.image.PhotoCalib object.

doApplyExternalSkyWcs

Default
False
Field type
bool Field
Whether to apply external astrometric calibration via an lsst.afw.geom.SkyWcs object.

doApplyFinalizedPsf

Default
False
Field type
bool Field
Whether to apply finalized psf models and aperture correction map.

doApplySkyCorr

Default
False
Field type
bool Field
Apply sky correction?

doApplyUberCal

Default
False
Field type
bool Field
Apply meas_mosaic ubercal results to input calexps? Deprecated: Deprecated by DM-23352; use doApplyExternalPhotoCalib and doApplyExternalSkyWcs instead

footprintSource

Default
'transformed'
Field type
str ChoiceField (optional)
Choices
'transformed'
Transform footprints from the reference catalog (downgrades HeavyFootprints).
'psf'
Use the scaled shape of the PSF at the position of each source (does not generate HeavyFootprints).
None
Field is optional
Where to obtain footprints to install in the measurement catalog, prior to measurement.

includePhotoCalibVar

Default
False
Field type
bool Field
Add photometric calibration variance to warp variance plane?

psfFootprintScaling

Default
3.0
Field type
float Field
Scaling factor to apply to the PSF shape when footprintSource=’psf’ (ignored otherwise).

saveLogOutput

Default
True
Field type
bool Field
Flag to enable/disable saving of log output for a task, enabled by default.

saveMetadata

Default
True
Field type
bool Field
Flag to enable/disable metadata saving for a task, enabled by default.

useGlobalExternalPhotoCalib

Default
True
Field type
bool Field
When using doApplyExternalPhotoCalib, use ‘global’ calibrations that are not run per-tract. When False, use per-tract photometric calibration files.

useGlobalExternalSkyWcs

Default
True
Field type
bool Field
When using doApplyExternalSkyWcs, use ‘global’ calibrations that are not run per-tract. When False, use per-tract wcs files.