Statistical analysis on the uncertainty of asteroid ephemerides

Details Statistical analysis on the uncertainty of asteroid ephemerides Statistical analysis on the uncertainty of asteroid ephemerides

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..639d&link_type=abstract

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,

Computer Science

Databases

Asteroids, Ephemerides, Dynamics, Databases

Scientific paper

The large number of asteroids allows a statistical analysis especially for their orbital uncertainty. It presents a particular interest for Near-Earth asteroids in order to estimate their close approach from Earth and eventually their risk of collision. Using ASTORB and MPCORB databases, we analyse the different uncertainty parameters (CEU, U) and highlight relations between the uncertainty parameter and the characteristics of the asteroid (orbital arc, absolute magnitude, ...).

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