class lsst.meas.astrom.MatchTolerance(maxMatchDist=None)

Bases: object

Stores match tolerances for use in lsst.meas.astrom.AstrometryTask and later iterations of the matcher.

MatchOptimsiticBTask relies on a maximum distance for matching set by either the default in MatchOptimisticBConfig or the 2 sigma scatter found after AstrometryTask has fit for a wcs.

maxMatchDist : lsst.geom.Angle

Current maximum distance to consider a match.