Aeronautics and astronautics – Spacecraft – Attitude control
Reexamination Certificate
2005-02-03
2009-12-01
Carone, Michael (Department: 3641)
Aeronautics and astronautics
Spacecraft
Attitude control
C701S226000, C342S355000
Reexamination Certificate
active
07624948
ABSTRACT:
A method for configuring and operating a spacecraft in an orbit that is inclined with respect to Earth's equatorial plane, the spacecraft including at least a solar array, a receive antenna, a transmit antenna, and radiator panels. The method includes the step of nominally orienting the yaw axis of the spacecraft, the roll axis of the spacecraft, and the radiator panels substantially parallel to Earth's equatorial plane, the pitch axis of the spacecraft and rotation axis of the solar array substantially parallel to Earth's polar axis, the Nadir vector in the yaw-pitch plane of the spacecraft, and the transmit antenna and receive antenna to angle φnom. The method also includes the step of correcting the attitude of the receive antenna and the transmit antenna to maintain a desired degree of the receive antenna and the transmit antenna steered toward a coverage region on Earth's surface.
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Carone Michael
Lee Benjamin P
Lockheed Martin Corporation
McDermott Will & Emery LLP
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