Radar images of asteroid 1989 PB

Details Radar images of asteroid 1989 PB Radar images of asteroid 1989 PB

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990sci...248.1523o&link_type=abstract

Science (ISSN 0036-8075), vol. 248, June 22, 1990, p. 1523-1528.

Astronomy and Astrophysics

Astronomy

59

Asteroid Belts, Comet Nuclei, Lunar Craters, Planetary Craters, Radar Imagery, Gravitational Effects, Solar System, Asteroids, Radar Methods, 1989Pb, Earth-Crossers, Shape, Binary Systems, Earth-Based Observations, Orbits, Astronomy, Diagrams, Procedure, Origin, Imagery, Center Of Mass, S Asteroids, Density, Physical Properties, Collisions, Formation

Scientific paper

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.

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