lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig Class Reference

Inheritance diagram for lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig:

Public Member Functions
	setDefaults (self)
	validate (self)

Public Attributes
int	stampSize = 41

Static Public Attributes
	spatialOrder
	sizeCellX
	sizeCellY
	samplingSize
	badMaskBits
	psfexBasis
	tolerance
	lam
	reducedChi2ForPsfCandidates
	spatialReject
	recentroid
	photometricFluxField

Detailed Description

Definition at line 119 of file psfexPsfDeterminer.py.

Member Function Documentation

setDefaults()

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.setDefaults

(

self

)

Definition at line 185 of file psfexPsfDeterminer.py.

    def setDefaults(self):
        super().setDefaults()
        self.stampSize = 41
 

validate()

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.validate

(

self

)

Definition at line 189 of file psfexPsfDeterminer.py.

    def validate(self):
        super().validate()
        fluxFieldEnding = self.photometricFluxField.rpartition("_")[-1]
        if "_" not in self.photometricFluxField or not (
            fluxFieldEnding == "flux" or fluxFieldEnding.endswith("Flux")
        ):
            raise ValueError(
                "Expected `photometricFluxField` to end with '_flux' "
                f"or '_*Flux', but got '{self.photometricFluxField}'"
            )
 
 

Member Data Documentation

badMaskBits

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.badMaskBits

static

Initial value:

=  pexConfig.ListField[str](
        doc="List of mask bits which cause a source to be rejected as bad "
        "N.b. INTRP is used specially in PsfCandidateSet; it means \"Contaminated by neighbour\"",
        default=["INTRP", "SAT"],
    )

Definition at line 142 of file psfexPsfDeterminer.py.

lam

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.lam

static

Initial value:

=  pexConfig.Field[float](
        doc="floor for variance is lam*data",
        default=0.05,
    )

Definition at line 162 of file psfexPsfDeterminer.py.

photometricFluxField

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.photometricFluxField

static

Initial value:

=  pexConfig.Field[str](
        doc="Flux field to use for photometric normalization. This overrides the "
            "``PHOTFLUX_KEY`` field for psfex. The associated flux error is "
            "derived by appending ``Err`` to this field.",
        default="base_CircularApertureFlux_9_0_instFlux",
    )

Definition at line 178 of file psfexPsfDeterminer.py.

psfexBasis

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.psfexBasis

static

Initial value:

=  pexConfig.ChoiceField[str](
        doc="BASIS value given to psfex.  PIXEL_AUTO will use the requested samplingSize only if "
        "the FWHM < 3 pixels.  Otherwise, it will use samplingSize=1.  PIXEL will always use the "
        "requested samplingSize",
        allowed={
            "PIXEL": "Always use requested samplingSize",
            "PIXEL_AUTO": "Only use requested samplingSize when FWHM < 3",
        },
        default='PIXEL_AUTO',
        optional=False,
    )

Definition at line 147 of file psfexPsfDeterminer.py.

recentroid

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.recentroid

static

Initial value:

=  pexConfig.Field[bool](
        doc="Should PSFEX be permitted to recentroid PSF candidates?",
        default=False,
    )

Definition at line 174 of file psfexPsfDeterminer.py.

reducedChi2ForPsfCandidates

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.reducedChi2ForPsfCandidates

static

Initial value:

=  pexConfig.Field[float](
        doc="for psf candidate evaluation",
        default=2.0,
    )

Definition at line 166 of file psfexPsfDeterminer.py.

samplingSize

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.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=0.5,
    )

Definition at line 137 of file psfexPsfDeterminer.py.

sizeCellX

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.sizeCellX

static

Initial value:

=  pexConfig.Field[int](
        doc="size of cell used to determine PSF (pixels, column direction)",
        default=256,
        #        minValue = 10,
        check=lambda x: x >= 10,
    )

Definition at line 125 of file psfexPsfDeterminer.py.

sizeCellY

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.sizeCellY

static

Initial value:

=  pexConfig.Field[int](
        doc="size of cell used to determine PSF (pixels, row direction)",
        default=sizeCellX.default,
        #        minValue = 10,
        check=lambda x: x >= 10,
    )

Definition at line 131 of file psfexPsfDeterminer.py.

spatialOrder

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.spatialOrder

static

Initial value:

=  pexConfig.Field[int](
        doc="specify spatial order for PSF kernel creation",
        default=2,
        check=lambda x: x >= 1,
    )

Definition at line 120 of file psfexPsfDeterminer.py.

spatialReject

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.spatialReject

static

Initial value:

=  pexConfig.Field[float](
        doc="Rejection threshold (stdev) for candidates based on spatial fit",
        default=3.0,
    )

Definition at line 170 of file psfexPsfDeterminer.py.

stampSize

int lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.stampSize = 41

Definition at line 187 of file psfexPsfDeterminer.py.

tolerance

lsst.meas.extensions.psfex.psfexPsfDeterminer.PsfexPsfDeterminerConfig.tolerance

static

Initial value:

=  pexConfig.Field[float](
        doc="tolerance of spatial fitting",
        default=1e-2,
    )

Definition at line 158 of file psfexPsfDeterminer.py.

---

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-10.0.0/Linux64/meas_extensions_psfex/g330003fc43+40b4eaffc6/python/lsst/meas/extensions/psfex/psfexPsfDeterminer.py