Attitude Maneuvers of a Rigid Spacecraft in a Circular Orbit

Details Attitude Maneuvers of a Rigid Spacecraft in a Circular Orbit Attitude Maneuvers of a Rigid Spacecraft in a Circular Orbit

2005-09-14

arxiv.org/abs/math/0509299v2

Mathematics

Optimization and Control

6 pages, 5 figures; numerous minor improvements. Accepted to the 2006 American Control Conference

Scientific paper

A global model is presented that can be used to study attitude maneuvers of a rigid spacecraft in a circular orbit about a large central body. The model includes gravity gradient effects that arise from the non-uniform gravity field and characterizes the spacecraft attitude with respect to the uniformly rotating local vertical local horizontal coordinate frame. An accurate computational approach for solving a nonlinear boundary value problem is proposed, assuming that control torque impulses can be applied at initiation and at termination of the maneuver. If the terminal attitude condition is relaxed, then an accurate computational approach for solving the minimal impulse optimal control problem is presented. Since the attitude is represented by a rotation matrix, this approach avoids any singularity or ambiguity arising from other attitude representations such as Euler angles or quaternions.

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