Computer Science – Performance
Scientific paper
Jan 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000neas.work...28m&link_type=abstract
Near-Earth Asteroid Sample Return Workshop, p. 28
Computer Science
Performance
Asteroids, Deflection, Detection, Collision Avoidance, International Cooperation, Prevention, Return To Earth Space Flight, Nuclear Weapons
Scientific paper
The ultimate goal of Near Earth Asteroidal (NEA) sample return and study missions should be directed towards the development of detection and analysis for the prevention of a major Earth impact such as the Tunguska impact, or even a larger one. Getting samples of an NEA back to Earth so that they can be better understood would help in the development of a comprehensive threat mitigation plan. The authors believe that threat mitigation can be divided into three parts. First is detection of Near Earth Objects by telescope; followed by sample recovery; and then a feasible deflection technology. Sample recovery should not be seen as an end in and of itself, but as an early sample of objects of similar nature that might need to be deflected from Earth impact at some near or future point in time. Greater resources should be devoted towards the detection and study of Earth orbit crossing objects than is currently in operation or effect. International cooperation, especially from the developed countries of the world, might spread the cost from just one government to a less costly multi-national spectrum. In addition, as with cometary research, amateurs might make a significant contribution in the early detection stages. The purpose of sample recovery should have as its goal the understanding of asteroid characteristics that would enable successful deflection from Earth impact. A nuclear weapon should be tested against a main belt asteroid to see the effect and be a staged performance for eventual operational deployment. The authors propose that a sphere of both nuclear and non-nuclear devices be deployed in a series of spheres, or ranges, at suitable distances around the Earth with state-of-the-art delivery systems so that they can cover a sector of space. This is because the farther away from the Earth that an impacting object is deflected, the lesser amount of force that will be necessary. Sample return missions would give the information on whether nuclear devices would be appropriate for deflection, or whether some other device might be more appropriate. Detection, then deflection, should be how Earth crossing objects are dealt with and deflected from an Earth impact. Additional information is contained in the original extended abstract.
Greenspon Jonathan A.
Mardon Austin
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