DipoleFitPluginConfig

class lsst.ip.diffim.DipoleFitPluginConfig

Bases: lsst.meas.base.sfm.SingleFramePluginConfig

!Configuration for DipoleFitPlugin

Attributes Summary

doMeasure	whether to run this plugin in single-object mode (bool, default True)
fitAllDiaSources	Attempte dipole fit of all diaSources (otherwise just the ones consisting of overlapping positive and negative footprints) (float, default False)
fitBackground	Set whether and how to fit for linear gradient in pre-sub.
fitSeparateNegParams	Include parameters to fit for negative values (flux, gradient) separately from pos.
maxChi2DoF	Maximum Chi2/DoF significance of fit to be considered a dipole.
maxFluxRatio	Maximum flux ratio in either lobe to be considered a dipole (float, default 0.65)
maxSeparation	Assume dipole is not separated by more than maxSeparation * psfSigma (float, default 5.0)
minSn	Minimum quadrature sum of positive+negative lobe S/N to be considered a dipole (float, default 7.0710678118654755)
relWeight	Relative weighting of pre-subtraction images (higher -> greater influence of pre-sub.
tolerance	Fit tolerance (float, default 1e-07)

Attributes Documentation

doMeasure

whether to run this plugin in single-object mode (bool, default True)

fitAllDiaSources

Attempte dipole fit of all diaSources (otherwise just the ones consisting of overlapping positive and negative footprints) (float, default False)

fitBackground

Set whether and how to fit for linear gradient in pre-sub. images. Possible values: 0: do not fit background at all 1 (default): pre-fit the background using linear least squares and then do not fit it as part

of the dipole fitting optimization

2: pre-fit the background using linear least squares (as in 1), and use the parameter

estimates from that fit as starting parameters for an integrated “re-fit” of the background

(int, default 1)

fitSeparateNegParams

Include parameters to fit for negative values (flux, gradient) separately from pos. (bool, default False)

maxChi2DoF

Maximum Chi2/DoF significance of fit to be considered a dipole. Default value means “Choose a chi2DoF corresponding to a significance level of at most 0.05” (note this is actually a significance, not a chi2 value). (float, default 0.05)

maxFluxRatio

Maximum flux ratio in either lobe to be considered a dipole (float, default 0.65)

maxSeparation

Assume dipole is not separated by more than maxSeparation * psfSigma (float, default 5.0)

minSn

Minimum quadrature sum of positive+negative lobe S/N to be considered a dipole (float, default 7.0710678118654755)

relWeight

Relative weighting of pre-subtraction images (higher -> greater influence of pre-sub. images on fit) (float, default 0.5)

tolerance

Fit tolerance (float, default 1e-07)