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|Title: ||Dynamics of drag free formations in Earth orbit|
|Authors: ||Ploen, Scott R.|
Acikmese, A. Behcet
Scharf, Daniel P.
|Keywords: ||formation flying|
|Issue Date: ||8-Nov-2004 |
|Publisher: ||Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004.|
|Citation: ||SPIE 4th International Asia-Pacific Environmental Remote Sensing Symposium, Honolulu, Hawaii, November 8, 2004.|
|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.|
|Appears in Collections:||JPL TRS 1992+|
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