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Spacecraft position monitoring and control

  • US 20070085735A1
  • Filed: 10/19/2005
  • Published: 04/19/2007
  • Est. Priority Date: 10/19/2005
  • Status: Abandoned Application
First Claim
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1. A method for updating position data in a non-geostationary constellation of spacecraft, the method comprising:

  • generating a position message in a terrestrial source;

    providing the position message to a first spacecraft to cause the first spacecraft to generate and provide a response message to the terrestrial source;

    processing the response message in the terrestrial source to determine spacecraft position data;

    sending the spacecraft position data to the first spacecraft;

    determining a location of a second spacecraft relative to the first spacecraft; and

    providing a navigation message to a navigational aid from the second spacecraft, wherein the navigation message includes an integrity indication based on the location of the second spacecraft relative to the first spacecraft when the navigation message is provided.

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