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Near Earth object modification using gravitational coupling

McInnes, C.R. (2007) Near Earth object modification using gravitational coupling. Journal of Guidance, Control and Dynamics, 30 (3). pp. 870-873. ISSN 0731-5090

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Abstract

It has been well documented that the population of near Earth objects (NEO) poses a terrestrial impact hazard [1-4]. Although current efforts are focused on detecting and cataloging such objects, various schemes for hazard mitigation have been proposed and investigated in some detail [5-15]. Nuclear devices appear attractive for deflecting potentially hazardous NEOs [5], although serious political issues arise concerning the deployment of such devices in space [11]. To overcome such difficulties, a range of nonnuclear options have been proposed. Concepts include focusing solar radiation onto the target asteroid with a large collector and smaller steerable secondary mirror to generate a hot jet of exhaust gas [6,7] or coating the asteroid to alter its albedo, and hence modify the Yarkovsky induced acceleration [8]. Somewhat more conventional approaches center on the use of kinetic energy impacts from either prograde [12,13] or retrograde orbits [9,10], or the use of continuous low thrust to increase the predicted Earth miss distance of the NEO using large solar or nuclear electric vehicles.

Item type: Article
ID code: 6611
Keywords: gravity, space travel, control systems, solar sails, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics
Subjects: Technology > Mechanical engineering and machinery
Technology > Motor vehicles. Aeronautics. Astronautics
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 14 Aug 2008
Last modified: 29 May 2012 10:01
URI: http://strathprints.strath.ac.uk/id/eprint/6611

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