Astrodynamics

Orbital Stability of Closely-Spaced Four-planet Systems

A systematic study of four-planet orbital lifetimes, showing how mean motion resonances and initial conditions drive stability — with implications for planetary system age …

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Bennet Outland

VLEO Satellite Modeling and Orbital Maintenance

State-space modeling of a satellite in hypersonic rarefied flow via sparse regression, with successive convexification for orbital maintenance.

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Bennet Outland

Orbital Stability of Nonuniformly-Spaced Many-planet Systems

Extends orbital stability analysis to non-uniformly-spaced planetary systems.

j.-lissauer

Orbital Stability of Closely-Spaced Many-planet Systems

Challenges conventional wisdom on multi-planet system stability — shows meaningful differences persist even for systems with large numbers of planets.

j.-lissauer

Starting Longitudes and the Lifetimes of Closely Spaced Four-Planet Systems

Systematic trends and sensitivity of multi-planetary systems to initial orbital separation.

g.-noble

Orbital Stability of Compact Four-Planet Systems

Updated systematic study of four-planet systems including details about lifetime phase shifting.

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Bennet Outland

Dependence of Lifetimes of Closely-Spaced Planetary Systems on Number of Planets

How stability characteristics change as more planets are added to compact systems.

j.-lissauer

Orbital Stability of Compact Four-Planet Systems

Initial results of a study on the lifetimes of four-planet systems analogous to those observed by the Kepler spacecraft.

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Bennet Outland