RefMatchTask¶
RefMatchTask
matches a source catalog with objects from a reference
catalog.
Processing summary¶
RefMatchTask
runs this sequence of operations:
- Find position reference stars that overlap the exposure.
- Match input source catalog to the position reference stars.
- Return statistics on quality of match.
Python API summary¶
from lsst.meas.astrom.ref_match import RefMatchTask
-
class
(refObjLoader, **kwargs)RefMatchTask
Match an input source catalog with objects from a reference catalog
...
-
attribute
config
Access configuration fields and retargetable subtasks.
See also
See the RefMatchTask
API reference for complete details.
Retargetable subtasks¶
matcher¶
- Default
lsst.meas.astrom.matchPessimisticB.MatchPessimisticBTask
- Field type
ConfigurableField
reference object/source matcher
referenceSelector¶
- Default
lsst.meas.algorithms.sourceSelector.ReferenceSourceSelectorTask
- Field type
ConfigurableField
How to select reference objects for cross-matching.
sourceSelector¶
- Default
'science'
- Field type
- Single-selection
RegistryField
- Choices
'science'
lsst.meas.algorithms.sourceSelector.ScienceSourceSelectorTask
'references'
lsst.meas.algorithms.sourceSelector.ReferenceSourceSelectorTask
'objectSize'
lsst.meas.algorithms.objectSizeStarSelector.ObjectSizeStarSelectorTask
'flagged'
lsst.meas.algorithms.flaggedSourceSelector.FlaggedSourceSelectorTask
'astrometry'
lsst.meas.algorithms.astrometrySourceSelector.AstrometrySourceSelectorTask
'matcher'
lsst.meas.algorithms.matcherSourceSelector.MatcherSourceSelectorTask
'diaCatalog'
lsst.ip.diffim.diaCatalogSourceSelector.DiaCatalogSourceSelectorTask
How to select sources for cross-matching.
Configuration fields¶
matchDistanceSigma¶
- Default
2
- Field type
float
RangeField
- Range
- [0,inf)
the maximum match distance is set to mean_match_distance + matchDistanceSigma*std_dev_match_distance; ignored if not fitting a WCS