https://reference.wolfram.com/system-modeler/libraries/DocumentationExamples/DocumentationExamples.Control.CircularOrbit.KeplerDynamics.html
DocumentationExamples: Control.CircularOrbit.KeplerDynamics - System Modeler Documentation
Kepler dynamics with x and y variables parameterizing deviations from a circular orbit centered at the origin with constant angular velocity omega
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