E1

class lsst.pipe.tasks.functors.E1(colXX, colXY, colYY, **kwargs)

Bases: Functor

Calculate \(e_1\) ellipticity component for sources, defined as:

\[e_1 &= (I_{xx}-I_{yy})/(I_{xx}+I_{yy})\]

See Also

E2

Attributes Summary

columns	Columns required to perform calculation.
name
shortname

Attributes Documentation

columns

name = 'Distortion Ellipticity (e1)'

shortname = 'Distortion'