Histograms for mass distributions for JFCs, HTCs, and OCCs at the Arecibo (AO), PFISR (PF), and MU radars. Panel (a) shows the number of particles within the radar’s collecting area at each radar location predicted by the astronomical models. For each meteor source in these distributions, 1 metric ton mass per day over the entire planet is considered. Panel (b) shows the number of particles that will be detected by the respective radar system when the detection model described in Janches et al. (2017) is applied.