A multi-mirror solution for the deflection of dangerous NEOs

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This paper presents some recent results on the deflection of potentially dangerous near earth objects. A particular deflection technique, employing a swarm of mirrors focusing the light of the Sun on the surface of the asteroid, is described. The swarm has to fly in formation with the asteroid, or hover in close proximity. The paper describes two different designs for the mirrors, and different options to place the spacecraft in the vicinity of the asteroid. In particular the paper shows a number of periodic formation orbits. As an alternative, results are shown by placing the spacecraft at fixed points in close proximity to the asteroid, where the solar pressure and the gravity attraction balance each other.
Original languageEnglish
Pages (from-to)4139-4152
Number of pages13
JournalCommunications in Nonlinear Science and Numerical Simulation
Issue number12
Early online date19 Sept 2008
Publication statusPublished - Dec 2009
EventSymposium on Celestial Mechanics and Dynamical Astronomy - Oporto, Portugal
Duration: 28 Jul 200831 Jul 2008


  • asteroid deflection
  • artificial equilibrium points
  • multiobjective optimization
  • formation flying


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