@sudnadja@nyrath Refer to Section 4.8 of Froncisz et al. 2020; where Peter Brown's group cautions about the statistical and systematic errors in meteor radar: "instrumental effects are present among our detected population warranting caution in interpretation of the results".
(even without the systematics; given their sample size, one would expect that a large fraction of their candidate interstellar dust particles were not actually interstellar - as Peter pointed out later).
