Abstract Circumnavigation relative motion is considered for applications such as inspecting a space object for damage, or characterizing space debris before engaging a remediation operation. Faster-than-natural circumnavigation is a guidance method in which the deputy spacecraft is advanced ahead of the natural Keplerian relative motion. A state transition matrix method of generating a discrete way point guidance solution is proposed for faster-than natural circumnavigation. The state transition matrix methodology is applied to both circular and elliptical chief orbits. For the circular chief case, natural relative trajectories are planar in nature. With the faster-than-natural circumnavigation, this work illustrates how the required relative trajectories become three-dimensional curves. This methodology allows for closed-form impulsive control solutions and the associated fuel cost. Numerical simulations illustrate and validate the proposed method.

    Highlights Non-natural speed up and slow down of circumnavigation relative orbits. Analytical control effort predictions are achievable for the circular chief case. The methodology works with eccentric orbits as well as illustrated via an example.


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    Title :

    Faster-than-natural spacecraft circumnavigation via way points


    Contributors:

    Published in:

    Acta Astronautica ; 123 ; 376-386


    Publication date :

    2016-01-29


    Size :

    11 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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