The deep space communications requirements of the post-1985 time frame are described and the orbiting deep space relay station (ODSRS) is presented as an option for meeting these requirements. Under current conditions, the ODSRS is not yet cost competitive with Earth based stations to increase DSN telemetry performance, but has significant advantages over a ground station, and these are sufficient to maintain it as a future option. These advantages include: the ability to track a spacecraft 24 hours per day with ground stations located only in the USA; the ability to operate at higher frequencies that would be attenuated by Earth's atmosphere; and the potential for building very large structures without the constraints of Earth's gravity.


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    Title :

    Orbiting Deep Space Relay Station (ODSRS). Volume 1: Requirement determination


    Contributors:

    Publication date :

    1979-04-01


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English