Discovery of a Main-Belt Asteroid Resembling Ordinary Chondrite Meteorites

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Science  03 Dec 1993:
Vol. 262, Issue 5139, pp. 1541-1543
DOI: 10.1126/science.262.5139.1541


Although ordinary chondrite material dominates meteorite falls, the identification of a main-belt asteroid source has remained elusive. From a new survey of more than 80 small main-belt asteroids comes the discovery of one having a visible and near-infrared reflectance spectrum similar to L6 and LL6 ordinary chondrite meteorites. Asteroid 3628 Božněmcová has an estimated diameter of 7 kilometers and is located in the vicinity of the 3:1 Jovian resonance, a predicted meteorite source region. Although the discovery of a spectral match may indicate the existence of ordinary chondrite material within the main asteroid belt, the paucity of such detections remains an unresolved problem.