CSDs of the 46 recovered meteorite falls and NEA theoretical impact radiants: NEODyS-2 (a), Method A (b), Method B (c), Method H (d), Method Q (e), and Method W (f). The red curve, labelled ‘Actual Data’, represents the cumulative similarity between every possible radiant–fall pair combination for the 46 falls and the theoretical NEA radiants of a particular method. The NEA radiants were estimated using six different methods, one for each panel. Two sporadic association regions are estimated. The blue region encompasses the 3σ confidence region for random associations based on the KDE-drawn samples. The red region represents the 3σ confidence region for random associations based on a uniformly random λ_⊙. In panel a, the ‘observed’ and ‘random’ curves reported by Carbognani & Fenucci (2023) are also included for comparison purposes.