Orbital Rendezvous: When is Autonomy Required?

The ability to control the relative motion of two orbiting spacecraft from the ground is approximately a function of four key parameters: relative state knowledge errors, maneuver execution errors, environment modeling errors, and the time delay between the execution of successive maneuvers. Based o...

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Bibliographic Details
Published in:Journal of guidance, control, and dynamics control, and dynamics, 2007-07, Vol.30 (4), p.974-981
Main Author: Geller, David
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Computer science
control theory
systems
Control theory. Systems
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Mars
Orbital rendezvous
Physics
Solid dynamics (ballistics, collision, multibody system, stabilization...)
Solid mechanics
Travel
Velocity
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Summary:The ability to control the relative motion of two orbiting spacecraft from the ground is approximately a function of four key parameters: relative state knowledge errors, maneuver execution errors, environment modeling errors, and the time delay between the execution of successive maneuvers. Based on these four parameters an assessment of the ground's capability to control relative position can be made and a minimum safe-approach distance can be determined. Approximate analytic expressions for minimum ground-controlled separations are presented and then validated with a detailed linear covariance analysis. The analytic expressions are shown to be accurate to within +/-25%.
ISSN:0731-5090
1533-3884
DOI:10.2514/1.27052