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Close encounters of Near Earth Objects with large asteroids

Published online by Cambridge University Press:  05 January 2015

Anatoliy Ivantsov ,
Siegfried Eggl ,
Daniel Hestroffer ,
William Thuillot  and
Pini Gurfil
Anatoliy Ivantsov
Affiliation:
Faculty of Aerospace Engineering, Technion - Israel Institute of Technology, Technion City, IL-3200003, Haifa, Israel email: ivantsov@tx.technion.ac.il Institut de Mécanique Céleste et de Calcul des Ephémérides, Observatoire de Paris, 77 avenue Denfert Rochereau, F-75014, Paris, France
Siegfried Eggl
Affiliation:
Institut de Mécanique Céleste et de Calcul des Ephémérides, Observatoire de Paris, 77 avenue Denfert Rochereau, F-75014, Paris, France
Daniel Hestroffer
Affiliation:
Institut de Mécanique Céleste et de Calcul des Ephémérides, Observatoire de Paris, 77 avenue Denfert Rochereau, F-75014, Paris, France
William Thuillot
Affiliation:
Institut de Mécanique Céleste et de Calcul des Ephémérides, Observatoire de Paris, 77 avenue Denfert Rochereau, F-75014, Paris, France
Pini Gurfil
Affiliation:
Faculty of Aerospace Engineering, Technion - Israel Institute of Technology, Technion City, IL-3200003, Haifa, Israel email: ivantsov@tx.technion.ac.il
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Abstract

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Close encounters of Near Earth Objects (NEOs) with large asteroids are a possible source of systematic errors in trajectory propagations and asteroid mitigation. It is, thus, necessary to identify those large asteroids that have to be considered as perturbers in NEO orbit modeling. Using the Standard Dynamical Model we searched for encounters between the 1649 numbered Near Earth Asteroids (NEAs) and 2191 large asteroids having sizes greater than 20 km. Investigating the 21st century A. D. we have found 791 close encounters with 195 different large asteroids that lead to a substantial scattering of NEOs.

Keywords

asteroidsNear-Earth objectsephemerides
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S310: Complex Planetary Systems , July 2014 , pp. 164 - 165
Copyright
Copyright © International Astronomical Union 2014 

References

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