PropagateSourceFlagsTask¶

PropagateSourceFlagsTask is a task to associate flags from source catalogs (e.g. which objects were used for astrometry, photometry, and psf fitting) with coadd object catalogs. Flagged sources may come from a mix of two different types of source catalogs. The sourceTable_visit catalogs from CalibrateTask contain flags for the first round of astrometry/photometry/psf fits. The finalized_src_table catalogs from FinalizeCalibrationTask contain flags from the second round of psf fitting. Which table should be used for the source of which flags depends on the configuration of coadds (in particular makeWarpConfig.doApplyFinalizedPsf).

Python API summary¶

from lsst.pipe.tasks.propagateSourceFlags import PropagateSourceFlagsTask

classPropagateSourceFlagsTask(schema, **kwargs): Task to propagate source flags to coadd objects...

attributeconfig: Access configuration fields and retargetable subtasks.

methodrun(coadd_object_cat, ccd_inputs, source_table_handle_dict=None, finalized_source_table_handle_dict=None): Propagate flags from single-frame sources to coadd objects...

Retargetable subtasks¶

No subtasks.

Configuration fields¶

finalized_source_flags¶

Default: {'calib_psf_candidate': 0.2, 'calib_psf_used': 0.2, 'calib_psf_reserved': 0.2}
Field type: DictField
Key type: str
Value type: float

Finalized source flags to propagate, with the threshold of relative occurrence (valid range: [0-1]). Coadd object will have flag set if fraction of input visits in which it is flagged is greater than the threshold.

finalized_x_column¶

Default: 'slot_Centroid_x'
Field type: str Field

Name of column with source x position (finalized_src_table).

finalized_y_column¶

Default: 'slot_Centroid_y'
Field type: str Field

Name of column with source y position (finalized_src_table).

match_radius¶

Default: 0.2
Field type: float Field

Source matching radius (arcsec)

source_flags¶

Default: {'calib_astrometry_used': 0.2, 'calib_photometry_used': 0.2, 'calib_photometry_reserved': 0.2}
Field type: DictField
Key type: str
Value type: float

Source flags to propagate, with the threshold of relative occurrence (valid range: [0-1]). Coadd object will have flag set if fraction of input visits in which it is flagged is greater than the threshold.

x_column¶

Default: 'x'
Field type: str Field

Name of column with source x position (sourceTable_visit).

y_column¶

Default: 'y'
Field type: str Field

Name of column with source y position (sourceTable_visit).

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