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The size of collision solutions in orbital elements space

Published online by Cambridge University Press:  28 February 2005

G.B. Valsecchi ,
A. Rossi ,
A. Milani  and
S.R. Chesley
G.B. Valsecchi
Affiliation:
INAF-IASF, via Fosso del Cavaliere 100, 00133 Roma, Italy email: giovanni@rm.iasf.cnr.it
A. Rossi
Affiliation:
ISTI-CNR, Area della Ricerca di Pisa, Via G. Moruzzi 1, 56124 Pisa, Italy
A. Milani
Affiliation:
Department of Mathematics, University of Pisa, Via Buonarroti 2, 56127 Pisa, Italy
S.R. Chesley
Affiliation:
Jet Propulsion Laboratory, 4800 Oak Grove Drive, CA-91109 Pasadena, USA
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Abstract

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In the framework of the analytical theory of close encounters, and under suitable assumptions, we compute the size of the region in orbital elements space containing collisions solutions. In the linearized approximation in the semimajor axis/eccentricity plane the collision region is the interior of an ellipse. Examples are given from past cases of Near Earth Asteroids having the possibility of impacting our planet.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

CollisionsNear-Earth asteroidsplanetary close encounters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC197 , August 2004 , pp. 249 - 254
Copyright
© 2005 International Astronomical Union