Reports

Asteroidal Source of Meteorites

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Science  05 Oct 1973:
Vol. 182, Issue 4107, pp. 51-53
DOI: 10.1126/science.182.4107.51

Abstract

The evolution of asteroidal orbits initially near the Kirkwood Gap at the 1:2 commensurability with Jupiter's period provides a mechanism for the production of meteorites from the asteroid belt without excessive velocity change. The resulting yield (∼ 109 grams per year) and the orbital elements of Earth-crossing objects are in agreement with observational data on meteorites.