ForcedPhotCcdTask¶

ForcedPhotCcdTask performs forced measurement on an image from a CCD.

Python API summary¶

from lsst.meas.base.forcedPhotCcd import ForcedPhotCcdTask

classForcedPhotCcdTask(refSchema=None, initInputs=None, **kwargs): 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...

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.ForcedPhotCcdConfigConnections
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

doApplySkyCorr¶

Default: False
Field type: bool Field

Apply sky correction?

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.

idGenerator¶

Data type: lsst.meas.base._id_generator.DetectorVisitIdGeneratorConfig
Field type: ConfigField

Configuration for how to generate catalog IDs from data IDs.

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.

useVisitSummary¶

Default: True
Field type: bool Field

Use updated WCS, PhotoCalib, ApCorr, and PSF from visit summary? This should be False if and only if the input image already has the best-available calibration objects attached.

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