Recent investigations on the accuracy of asteroid ephemerides

Details Recent investigations on the accuracy of asteroid ephemerides Recent investigations on the accuracy of asteroid ephemerides

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..949d&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.949

Computer Science

Databases

Scientific paper

The orbit uncertainty of asteroid 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 [1] and MPCORB [2] databases, we analyse the different uncertainty parameters (CEU, U). Relations between the uncertainty parameter and the characteristics of the asteroid (orbital arc, absolute magnitude, ...) are highlighted. A review of the different measurements are also compilated and the impact of these measures on the accuracy of the orbit is also estimated.

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