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Dynamics of Satellites Around Asteroids in Presence of Solar Radiation Pressure

Published online by Cambridge University Press:  01 March 2016

Xiaosheng Xin ,
Daniel J. Scheeres ,
Xiyun Hou  and
Lin Liu
Xiaosheng Xin
Affiliation:
School of Astronomy and Space Science, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China email: [email protected]
Daniel J. Scheeres
Affiliation:
Department of Aerospace Engineering Sciences, University of Colorado at Boulder, 429 UCB, Boulder, CO 80309, USA email: [email protected]
Xiyun Hou
Affiliation:
School of Astronomy and Space Science, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China email: [email protected]
Lin Liu
Affiliation:
School of Astronomy and Space Science, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China email: [email protected]
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Abstract

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Due to the close distance to the Sun, solar radiation pressure (SRP) plays an important role in the dynamics of satellites around near-Earth asteroids (NEAs). In this paper, we focus on the equilibrium points of a satellite orbiting around an asteroid in presence of SRP in the asteroid rotating frame. The asteroid is modelled as a uniformly rotating triaxial ellipsoid. When SRP comes into play, the equilibrium points transformed into periodic orbits termed as``dynamical substitutes". We obtain the analytical approximate solutions of the dynamical substitutes from the linearised equations of motion. The analytical solutions are then used as initial guesses and are numerically corrected to compute the accurate orbits of the dynamical substitutes. The stability of the dynamical substitutes is analysed and the stability maps are obtained by varying parameters of the ellipsoid model as well as the magnitude of SRP.

Keywords

Minor planetsasteroidsMethods: numerical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S318: Asteroids: New Observations, New Models , August 2015 , pp. 259 - 264
Copyright
Copyright © International Astronomical Union 2016 

References

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