Radar observations of asteroid 216 kleopatra |
| |
| Authors: | Ostro Hudson Nolan Margot Scheeres Campbell Magri Giorgini Yeomans |
| |
| Institution: | Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USA. School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164-2752, USA. Arecibo Observatory, HC3 Box. |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
