Abstract
We present a reviewof the results concerning a generalization of the classical averaging principle suitable to deal with orbit crossings, that make singular the Newtonian potential at the values of the anomalies corresponding to collisions. These methods have been applied to study the secular evolution of Near Earth Asteroids and to define proper elements for them, that are useful to study the possibility of impact between these asteroids and the Earth.
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Gronchi, GF. (2002). Generalized Averaging Principle and Proper Elements for NEAs. In: Benest, D., Froeschlé, C. (eds) Singularities in Gravitational Systems. Lecture Notes in Physics, vol 590. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48009-9_10
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DOI: https://doi.org/10.1007/3-540-48009-9_10
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