70-cm radar observations of 433 Eros

Details 70-cm radar observations of 433 Eros 70-cm radar observations of 433 Eros

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976icar...28...17c&link_type=abstract

Icarus, vol. 28, May 1976, p. 17-20.

Astronomy and Astrophysics

Astronomy

5

Asteroids, Planetary Surfaces, Radar Astronomy, Ultrahigh Frequencies, Radar Cross Sections, Radar Echoes, Radar Tracking

Scientific paper

Radar observations of 433 Eros were made at the Arecibo Observatory using a wavelength of 70 cm during the close approach of Eros to earth in mid-January, 1975. A peak radar cross section of plus or minus 15 sq km was observed. The spectral broadening obtained was approximately 30 Hz, which is consistent with a value of 16 km for the maximum radius of the asteroid. The surface of Eros appears to be relatively rough at the scale of a wavelength as compared to the surfaces of the terrestrial planets and the moon. The composition of the surface is not well determined, except that it cannot be a highly conducting metal. A single measurement each of round-trip echo times delay and Doppler shift was made.

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