Radar observations of asteroid 1685 Toro

Details Radar observations of asteroid 1685 Toro Radar observations of asteroid 1685 Toro

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88..565o&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, April 1983, p. 565-576.

Astronomy and Astrophysics

Astronomy

27

Radar Astronomy, Toro Asteroid, Albedo, Bandwidth, Circular Polarization, Ellipsoids, Radar Cross Sections, Radar Scattering, Radar Signatures, Asteroids, Observations, Radar, 1685 Toro, Wavelengths, Spectra, Scattering, Photopolarimetry, Size, Shape, Surface, Properties, Models, Reflectivity, Depolarization, Geometric Albedo, Porosity, Composition, Earth Crossers, Apollo Asteroids

Scientific paper

The present results of 13 cm wavelength radar observations of the asteroid 1685 Toro, conducted at the Arecibo Observatory in July 1980, yield radar spectra which reveal correlated and approximately twofold variations in radar cross section and spectral bandwidth as functions of rotational phase, with two maxima and two minima per rotation cycle. In combination with the photopolarimetric results of Dunlap et al. (1973), the observations presently reported offer constraints on Toro's size, shape, and surface properties. Modeling Toro as a homogeneously scattering ellipsoid yields weighed least squares estimates for the lengths of the equatorial semiaxes and a nearly Lambertian scattering law.

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