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Dynamics of drag free formations in Earth orbit

Show simple item record Ploen, Scott R. Hadaegh, Fred.Y. Acikmese, A. Behcet Scharf, Daniel P. 2007-11-30 2007-11-30 2004-11-08
dc.identifier.citation SPIE 4th International Asia-Pacific Environmental Remote Sensing Symposium, Honolulu, Hawaii, November 8, 2004. en
dc.identifier.clearanceno 04-3370
dc.description.abstract In this paper the translational equations of motion of a formation of n spacecraft in Earth orbit, nf of which are drag-free spacecraft, are derived in a coordinate-free manner using the balance of linear momentum and direct tensor notation. A drag-free spacecraft consists of a spacecraft bus and a proof mass shielded from external disturbances in an internal cavity. By controlling the spacecraft so that the proof mass remains centered in the cavity, the spacecraft follows a purely gravitational orbit. The results described in this paper provide a first step toward coupling drag-free control technology with formation flying in order to mitigate the effect of differential aerodynamic drag on formation flying missions (e.g., Earth imaging applications) in low Earth orbit. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 410631 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004. en
dc.subject formation flying en
dc.subject drag-free technology en
dc.title Dynamics of drag free formations in Earth orbit en
dc.type Preprint en

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