Physical models of large number of asteroids from calibrated photometry sparse in time

Details Physical models of large number of asteroids from calibrated photometry sparse in time Physical models of large number of asteroids from calibrated photometry sparse in time

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...422l..39k&link_type=abstract

Astronomy and Astrophysics, v.422, p.L39-L42 (2004)

Astronomy and Astrophysics

Astrophysics

22

Solar System: Minor Planets, Asteroids, Techniques: Photometric, Methods: Numerical, Observational

Scientific paper

I show that physical asteroid models can be constructed from unprecedentedly small sets of single calibrated photometric measurements sparse in time but well distributed in observing geometries. Sidereal periods, pole directions, and phase behaviour are solved with accuracy sufficient for the statistical analysis of a large collection of targets. Coarse estimates are obtained for the global shapes. This scheme makes it possible to carry out groundbased photometric surveys of thousands of asteroids, typically resulting in models within a few years. It may also be possible to model several asteroids using existing databases. In the future, GAIA photometry will provide another dataset for thousands of asteroids.

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