lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig Class Reference

Inheritance diagram for lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig:

Public Member Functions
	setDefaults (self)

Public Attributes
	stampSize

Static Public Attributes
	spatialOrder
	samplingSize
	outlierNSigma
	outlierMaxRemove
	maxSNR
	zeroWeightMaskBits
	minimumUnmaskedFraction
	interpolant
	debugStarData
	useCoordinates

Detailed Description

Definition at line 71 of file piffPsfDeterminer.py.

Member Function Documentation

setDefaults()

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.setDefaults

(

self

)

Definition at line 124 of file piffPsfDeterminer.py.

    def setDefaults(self):
        super().setDefaults()
        # stampSize should be at least 25 so that
        # i) aperture flux with 12 pixel radius can be compared to PSF flux.
        # ii) fake sources injected to match the 12 pixel aperture flux get
        #     measured correctly
        self.stampSize = 25
 
 

Member Data Documentation

debugStarData

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.debugStarData

static

Initial value:

=  pexConfig.Field[bool](
        doc="Include star images used for fitting in PSF model object.",
        default=False
    )

Definition at line 110 of file piffPsfDeterminer.py.

interpolant

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.interpolant

static

Initial value:

=  pexConfig.Field[str](
        doc="GalSim interpolant name for Piff to use. "
            "Options include 'Lanczos(N)', where N is an integer, along with "
            "galsim.Cubic, galsim.Delta, galsim.Linear, galsim.Nearest, "
            "galsim.Quintic, and galsim.SincInterpolant.",
        check=_validateGalsimInterpolant,
        default="Lanczos(11)",
    )

Definition at line 102 of file piffPsfDeterminer.py.

maxSNR

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.maxSNR

static

Initial value:

=  pexConfig.Field[float](
        doc="Rescale the weight of bright stars such that their SNR is less "
            "than this value.",
        default=200.0
    )

Definition at line 89 of file piffPsfDeterminer.py.

minimumUnmaskedFraction

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.minimumUnmaskedFraction

static

Initial value:

=  pexConfig.Field[float](
        doc="Minimum fraction of unmasked pixels required to use star.",
        default=0.5
    )

Definition at line 98 of file piffPsfDeterminer.py.

outlierMaxRemove

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.outlierMaxRemove

static

Initial value:

=  pexConfig.Field[float](
        doc="Max fraction of stars to remove as outliers each iteration",
        default=0.05
    )

Definition at line 85 of file piffPsfDeterminer.py.

outlierNSigma

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.outlierNSigma

static

Initial value:

=  pexConfig.Field[float](
        doc="n sigma for chisq outlier rejection",
        default=4.0
    )

Definition at line 81 of file piffPsfDeterminer.py.

samplingSize

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.samplingSize

static

Initial value:

=  pexConfig.Field[float](
        doc="Resolution of the internal PSF model relative to the pixel size; "
        "e.g. 0.5 is equal to 2x oversampling",
        default=1,
    )

Definition at line 76 of file piffPsfDeterminer.py.

spatialOrder

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.spatialOrder

static

Initial value:

=  pexConfig.Field[int](
        doc="specify spatial order for PSF kernel creation",
        default=2,
    )

Definition at line 72 of file piffPsfDeterminer.py.

stampSize

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.stampSize

Definition at line 130 of file piffPsfDeterminer.py.

useCoordinates

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.useCoordinates

static

Initial value:

=  pexConfig.ChoiceField[str](
        doc="Which spatial coordinates to regress against in PSF modeling.",
        allowed=dict(
            pixel='Regress against pixel coordinates',
            field='Regress against field angles',
            sky='Regress against RA/Dec'
        ),
        default='pixel'
    )

Definition at line 114 of file piffPsfDeterminer.py.

zeroWeightMaskBits

lsst.meas.extensions.piff.piffPsfDeterminer.PiffPsfDeterminerConfig.zeroWeightMaskBits

static

Initial value:

=  pexConfig.ListField[str](
        doc="List of mask bits for which to set pixel weights to zero.",
        default=['BAD', 'CR', 'INTRP', 'SAT', 'SUSPECT', 'NO_DATA']
    )

Definition at line 94 of file piffPsfDeterminer.py.

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The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/meas_extensions_piff/g64a986408d+86cf3d8bc9/python/lsst/meas/extensions/piff/piffPsfDeterminer.py