MR SAT Orbit Determination using the Θ-D Filter

Alternative Title

MR SAT orbit determination using the theta-D filter


The ME SAT design team at the University of Missouri-Rolla is in the process of developing a pair of microsatellites designed to demonstrate formation flight using low-cost, off-the-shelf technologies. As part of the demonstration, a newly developed nonlinear filter named the "θ- D" filter, is proposed for purposes of orbit determination. This paper describes the general θ-D filter formulation, the dynamic model used for orbit determination, and a method of implementing a continuous filter in a discrete time sense. The results presented within show the effectiveness of the proposed orbit determination method.

Meeting Name

AIAA/AAS Astrodynamics Specialist Conference 2006 (2006: Aug. 21-24, Keystone, CO)


Mechanical and Aerospace Engineering

Keywords and Phrases

Microsatellites; Nonlinear Filtering; Off-The-Shelf Technologies; Orbit Determination; Orbits; Satellites; Space Flight; Space Rendezvous

Document Type

Article - Conference proceedings

Document Version


File Type





© 2006 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

Publication Date

24 Aug 2006

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