Back to Search
Start Over
Satellite Relative Motion Modeling and Estimation via Nodal Elements
- Source :
- Journal of Guidance, Control and Dynamics, Vol. 43, No. 10, 2020
- Publication Year :
- 2020
-
Abstract
- In this paper, a new parametrization of the relative motion between two satellites orbiting a central body is presented. The parametrization is based on the nodal elements: a set of angles describing the orbit geometry with respect to the relative line of nodes. These are combined with classical orbital elements to yield a nonsingular relative motion description. The exact nonlinear, perturbed dynamic model resulting from the new parametrization is established. The proposed parameter set captures the fundamental Keplerian invariants, while retaining a simple relationship with local orbital coordinates. An angles-only relative navigation filter and a collision avoidance scheme are devised by exploiting these features. The navigation solution is validated on a case study of an asteroid flyby mission. It is shown that a collision can be detected early on in the estimation process, which allows one to issue a timely evasive maneuver.
- Subjects :
- Electrical Engineering and Systems Science - Systems and Control
Subjects
Details
- Database :
- arXiv
- Journal :
- Journal of Guidance, Control and Dynamics, Vol. 43, No. 10, 2020
- Publication Type :
- Report
- Accession number :
- edsarx.2003.02140
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.2514/1.G005186