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a dynamical systems approach to the design of the science orbit around europaThe science orbit for a future mission to Europa requires low eccentricity, low altitude, and high inclination. However, high inclination orbits around planetary satellites are unstable due to third-body perturbations. Without control, the orbiter impacts Europa after few weeks. To minimize control, a tour over the stable-unstable, averaged manifolds of unstable frozen orbits has been suggested. We proceed with the unaveraged equations and study the manifolds of unstable orbits that are periodic in a rotating frame attached to Europa. Massive numerical computation helps in understanding the unstable dynamics close to Europa, and, thus, in selecting long lifetime high inclination orbits. A final test of a selected set of initial conditions on a high fidelity, ephemeris model, validate the results.
Document ID
20070019846
Document Type
Conference Paper
External Source(s)
Authors
Gomez, Gerard
(Barcelona Univ. Spain)
Lara, Martin
(Real Observatorio de la Armada Spain)
Russell, Ryan P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 23, 2013
Publication Date
June 4, 2006
Subject Category
Mathematical and Computer Sciences (General)
Report/Patent Number
ISTS 2006-d-02
Meeting Information
19th International Symposium on Space Flight Dynamics(Kanazawa)
Funding Number(s)
CONTRACT_GRANT: ESP2004-04376
CONTRACT_GRANT: BFM2003-09504
CONTRACT_GRANT: ESP2005-07107
Distribution Limits
Public
Copyright
Other
Keywords
Europa
orbital dynamics
dynamical systems
unstable orbits
manifold
mapping