Radar observations of asteroid 216 Kleopatra

Steven J. Ostro, R. Scott Hudson, Michael C. Nolan, Jean Luc Margot, Daniel J. Scheeres, Donald B. Campbell, Christopher Magri, Jon D. Giorgini, Donald K. Yeomans

Research output: Contribution to journalArticlepeer-review

168 Scopus citations


Radar observations of the main-belt, M-class asteroid 216 Kleopatra reveal a dumbbell-shaped object with overall dimensions of 217 kilometers by 94 kilometers by 81 kilometers (±25%). The asteroid's surface properties are consistent with a regolith having a metallic composition and a porosity comparable to that of lunar soil. Kleopatra's shape is probably the outcome of an exotic sequence of collisional events, and much of its interior may have an unconsolidated rubble-pile structure.

Original languageEnglish (US)
Pages (from-to)836-839
Number of pages4
Issue number5467
StatePublished - May 5 2000
Externally publishedYes

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