Radar Images of Asteroid 1989 PB
- 22 June 1990
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 248 (4962) , 1523-1528
- https://doi.org/10.1126/science.248.4962.1523
Abstract
Radar observations of the near-Earth asteroid 1989 PB, made shortly after its optical discovery, yield a sequence of delay-Doppler images that reveal it to consist of two distinct lobes that appear to be in contact. It seems likely that the two lobes once were separate and that they collided to produce the current "contact-binary" configuration.Keywords
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