A comparative assessment of different deviation strategies for dangerous NEO

Camilla Colombo, Joan-Pau S. Cuartielles, Massimiliano Vasile, Gianmarco Radice

Research output: Contribution to conferencePaper

15 Citations (Scopus)
33 Downloads (Pure)

Abstract

In this paper a number of deviation strategies for dangerous Near Earth Objects (NEO) have been compared. For each strategy (i.e. Solar Collector, Nuclear Blast, Kinetic Impactor, Low-thrust Propulsion, Mass Driver) a multi criteria optimisation method has been used to reconstruct the set of Pareto optimal solutions minimising the mass of the spacecraft and the warning time, and maximising the deviation. Then, a dominance criterion has 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 variation of the orbit of the NEO, has been computed through a set of analytical formulas. The variation of the orbit of the NEO has been estimated through a deviation action model that takes into account the wet mass of the spacecraft at the Earth. Finally the technology readiness level of each strategy has been used to compute a more realistic value for the required warning time.
Original languageEnglish
PagesAC-06-A3.5.8
Number of pages13
Publication statusPublished - 2 Oct 2006
EventAIAA 57th International Astronautical Congress - Valencia, Spain
Duration: 2 Oct 20066 Oct 2006

Conference

ConferenceAIAA 57th International Astronautical Congress
CountrySpain
CityValencia
Period2/10/066/10/06

Keywords

  • dangerous near earth objects
  • solar collector
  • nuclear blast
  • kinetic impactor
  • low thrust propulsion
  • mass driver
  • pareto optimal solutions

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