A multi-criteria assessment of deflection methods for dangerous NEOs

Joan Pau Sanchez Cuartielles, Camilla Colombo, Massimiliano Vasile, Gianmarco Radice, Edward Belbruno (Editor)

Research output: Chapter in Book/Report/Conference proceedingChapter

16 Citations (Scopus)
81 Downloads (Pure)


Over the last few years, the possible scenario of an asteroid threatening to impact the Earth has stimulated an intense debate among the scientific community about possible deviation methods. In this paper we present a comparative assessment of some of the more feasible mitigation schemes reviewed in the literature (i.e. solar collector, nuclear blast, kinetic impactor, low-thrust propulsion and mass driver). For each strategy, a multi-criteria optimization method has been used to construct a set of Pareto optimal solutions, minimizing both the mass of the spacecraft and the warning time, while simultaneously maximizing the deviation. A dominance criterion has then been defined and used to compare all the Pareto sets. The achievable deviation at the MOID, either for a low-thrust or for an impulsive manoeuver, has been computed through a set of analytical formulas. The variation in the orbit of the NEO has been estimated through a deviation action model that takes into account the wet mass of the spacecraft on the Earth. Finally, the technology readiness level of each strategy has been used to recompute a more realistic value for the required warning time.
Original languageEnglish
Title of host publicationNew Trends in Astrodynamics and Applications III
Place of PublicationNew York
Number of pages19
Publication statusPublished - 7 Feb 2007

Publication series

NameAIP Conference Proceedings
PublisherAmerican Institute of Physics/Springer Verlag


  • asteroids
  • deviation
  • mitigation
  • solar collector
  • nuclear blast
  • natural hazards
  • artificial satellites


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