MergeMeasurementsTask

Python API summary

from lsst.pipe.tasks.mergeMeasurements import MergeMeasurementsTask

classMergeMeasurementsTask(butler=None, schema=None, initInputs=None, **kwargs)

! @anchor MergeMeasurementsTask_...

attributeconfig

Access configuration fields and retargetable subtasks.

methodrun(catalogs)

! Merge measurement catalogs to create a single reference catalog for forced photometry...

methodrunDataRef(patchRefList)

! @brief Merge coadd sources from multiple bands. Calls @ref `run`. @param[in] patchRefList list of data references for each filter...

See also

See the MergeMeasurementsTask API reference for complete details.

Retargetable subtasks

No subtasks.

Configuration fields

catalogs

Data type

lsst.pipe.base.config.InputDatasetConfig

Field type

ConfigField

Input catalogs to merge.

coaddName

Default

'deep'

Field type

str Field

Name of coadd

flags

Default

['base_PixelFlags_flag_interpolatedCenter', 'base_PsfFlux_flag', 'ext_photometryKron_KronFlux_flag', 'modelfit_CModel_flag']

Field type

str ListField

Require that these flags, if available, are not set

inputSchema

Data type

lsst.pipe.base.config.InitInputDatasetConfig

Field type

ConfigField

Schema for the input measurement catalogs.

mergedCatalog

Data type

lsst.pipe.base.config.OutputDatasetConfig

Field type

ConfigField

Output merged catalog.

minSN

Default

10.0

Field type

float Field

If the S/N from the priority band is below this value (and the S/N is larger than minSNDiff compared to the priority band), use the band with the largest S/N as the reference band.

minSNDiff

Default

3.0

Field type

float Field

If the difference in S/N between another band and the priority band is larger than this value (and the S/N in the priority band is less than minSN) use the band with the largest S/N as the reference band

outputSchema

Data type

lsst.pipe.base.config.InitOutputDatasetConfig

Field type

ConfigField

Schema for the output merged measurement catalog.

priorityList

Default

[]

Field type

str ListField

Priority-ordered list of bands for the merge.

pseudoFilterList

Default

['sky']

Field type

str ListField

Names of filters which may have no associated detection (N.b. should include MergeDetectionsConfig.skyFilterName)

quantum

Data type

lsst.pipe.base.config.QuantumConfig

Field type

ConfigField

configuration for PipelineTask quantum

snName

Default

'base_PsfFlux'

Field type

str Field

Name of flux measurement for calculating the S/N when choosing the reference band.