The shape of Eros

Details The shape of Eros The shape of Eros

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...84..334o&link_type=abstract

Icarus (ISSN 0019-1035), vol. 84, April 1990, p. 334-351.

Astronomy and Astrophysics

Astronomy

33

Asteroids, Monte Carlo Method, Shapes, Astrometry, Center Of Mass, Light Curve, Power Spectra, Asteroids, Eros, Radar Methods, Shape, Physical Properties, Geometry, Monte Carlo Methods, Simulations, Harmonics, Lightcurve, Diagrams, Calculations, Parameters, Procedure, Astronomy, Center Of Mass, Optical Properties

Scientific paper

Monte Carlo simulations are presently used to optimize estimation, ascertain associated errors, and guide bias-correction procedures, for the Eros polar silhouette convex hull that has been estimated from radar echo spectra. This hull is trapezoidal; this nonaxisymmetric shape may account for odd harmonics in Eros' echo spectral signature as a function of rotation phase. Additional constraints have been obtained for the figure of Eros through the inversion of the optical lightcurve to estimate the asteroid's two-dimensional average of the three-dimensional shape. This 'mean cross-section' and the polar silhouette exhibit similar elongations.

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