Repeat-pass interferometry is a powerful technique for determining changes in topography by flying a radar over the terrain two or more times. These overflights must be very close to each other in space. To design and maintain a low Venus orbit that enables this requires the consideration of drag, non-spherical gravity effects, and solar tides. Once the orbit is designed, the spacecraft must be navigated. To do so requires the use of radar-based terrain-relative navigation in addition to the traditional radiometric datatypes. The mission design and navigation to enable repeat-pass interferometry at Venus are described.


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    Title :

    Enabling repeat-pass interferometry from low Venus orbit


    Contributors:

    Publication date :

    2019-01-13


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English



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