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Radar observations of apollo |
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| Authors: | RM Goldstein RF Jurgens DK Yeomans |
| Institution: | Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103, USA |
| Abstract: | Radar observations of the asteroid Apollo, at 3.5 cm wavelength, indicate a radius of 600 m and a rotation period of 3.0 hr. The data are consistent with a rough surface of either hard ice or of regolith softened rock. |
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