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Elliptical orbit satellite, system, and deployment with controllable coverage characteristics

  • US 5,582,367 A
  • Filed: 02/16/1994
  • Issued: 12/10/1996
  • Est. Priority Date: 06/02/1992
  • Status: Expired due to Term
First Claim
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1. A communication system, comprising:

  • a constellation of satellites in orbit around the earth, each defining an elliptical orbit which has orbital parameters to satisfy the equation ##EQU10## , where Ω

    is the right ascension of an ascending node, and ω

    is an argument of perigee, and wherein each of said satellites in orbit asymmetrically covers one parameter of coverage more than another in a way which is constant at all positions of the earth relative to the sun, anda plurality of earth stations, each positioned on the earth, each including tracking equipment to track a motion of at least one of said satellites, and communication equipment to communicate with said at least one of said satellites.

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