Imported: 24 Feb '17 | Published: 06 Jan '04

USPTO - Utility Patents

A method and system for controlling the eccentricity of a near-circular orbit are embodied in a burn controller for an orbiting object (such as a satellite) that is configured to control burns to occur at either an apogee or a perigee of the orbit to effect a desired change in the eccentricity of the orbit. These burns occur at either an apogee or a perigee of the orbit depending upon the satellite's location in the long-period motion of the argument of perigee.

Detailed description of embodiments of the invention will be made with reference to the accompanying drawings:

1. A method for controlling the eccentricity of a near-circular orbit, comprising:

2. A method for controlling the eccentricity of a near-circular orbit, comprising:

3. The method for controlling the eccentricity of a near-circular orbit of

4. The method for controlling the eccentricity of a near-circular orbit of

5. The method for controlling the eccentricity of a near-circular orbit of

6. The method for controlling the eccentricity of a near-circular orbit of

7. The method for controlling the eccentricity of a near-circular orbit of

8. The method for controlling the eccentricity of a near-circular orbit of

9. The method for controlling the eccentricity of a near-circular orbit of

10. The method for controlling the eccentricity of a near-circular orbit of

11. A system for controlling the eccentricity of a near-circular orbit, comprising:

12. The system for controlling the eccentricity of a near-circular orbit of

13. The system for controlling the eccentricity of a near-circular orbit of

14. The system for controlling the eccentricity of a near-circular orbit of

15. The system for controlling the eccentricity of a near-circular orbit of

16. The system for controlling the eccentricity of a near-circular orbit of

17. The system for controlling the eccentricity of a near-circular orbit of

18. The system for controlling the eccentricity of a near-circular orbit of