Meteor beginning height as a function of initial velocity. We have plotted Ceplecha’s classes of meteoroids in our sample (A-group, B-group, C-group, and D-group). The solid line and two dashed lines mark the mean beginning of average strength meteoroids and their limits, with the empirical mean line being hB = 58 × v0.156 (see Borovicka et al. 2005).
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