×

Attitude pointing error correction system and method for geosynchronous satellites

  • US 4,911,385 A
  • Filed: 04/30/1987
  • Issued: 03/27/1990
  • Est. Priority Date: 04/30/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of correcting pointing errors in a geosynchronous satellite consequent to orbit inclination, comprising the steps of:

  • establishing the momentum vector along an axis other than an axis normal to the equatorial orbit plane;

    coupling the momentum vector to the satellite through at least a single degree-of-freedom connection coincident with at least a selected one of the roll or yaw axes for effecting rotation of the satellite relative to the momentum vector about the selected axis, the roll axis tangential to the orbit path and the yaw axis perpendicular to the roll axis in the orbit plane; and

    torquing the satellite about the selected axis in a time-varying manner in synchronism with the orbit of the satellite and as a function of an orbit inclination angle i.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×