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Related Experiment Videos

A dynamic metric for NEO hazard mitigation.

John L Remo1

  • 1Quantum Resonance Inc., Brackenwood Path, Head of the Harbor, St. James, NY 11780, USA. jremo@cfa.harvard.edu

Annals of the New York Academy of Sciences
|June 29, 2004
PubMed
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A new metric quantifies the energy needed to prevent asteroid impacts. This dynamic approach aids in near-Earth object (NEO) hazard mitigation by calculating the precise force required to alter an asteroid's trajectory.

Area of Science:

  • Planetary Science
  • Astrodynamics
  • Space Hazard Mitigation

Background:

  • Near-Earth objects (NEOs) pose potential impact risks to Earth.
  • Effective hazard mitigation requires quantifying the energy needed to alter NEO trajectories.

Purpose of the Study:

  • To introduce a dynamic metric for quantifying the energy required for NEO hazard mitigation.
  • To establish a method for assessing the threat level of potential NEO impacts.

Main Methods:

  • The study defines a dynamic metric based on the energy needed to perturb NEO orbits.
  • Calculations incorporate NEO mass, required velocity change for collision avoidance, and the momentum coupling coefficient.

Main Results:

  • A quantifiable metric for NEO impact hazard mitigation has been developed.

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  • The metric provides a basis for evaluating the energy requirements for deflection missions.

    • Conclusions:

    • The proposed dynamic metric offers a standardized approach to assessing NEO impact threats.
    • This metric is crucial for planning and executing effective asteroid deflection strategies.