Radar Images of Asteroid 1989 PB

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 prod...

Full description

Saved in:
Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1990-06, Vol.248 (4962), p.1523-1528
Main Authors: Ostro, Steven J., Chandle, John F., Hine, Alice A., Rosema, Keith D., Shapiro, Irwin I., Yeomans, Donald K.
Format: Article
Language:English
Subjects:
Asteroids
Asteroids (minor planets)
Astronomical objects
Astronomy
Doppler radar
Earth
Earth, ocean, space
Ephemerides
Exact sciences and technology
Lunar And Planetary Exploration
Meteors & meteorites
Observations
Planetary orbits
Planets, their satellites and rings. Asteroids
Radar
Radar echoes
Radar tracking
Research Article
Rotation
Silhouettes
Solar system
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.248.4962.1523