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  1. Orbital Motions

    Linked via "classical orbital elements (COEs)"

    Orbital Elements and State Vectors
    To precisely define the instantaneous state and future path of an orbiting body, a set of six independent parameters, known as the classical orbital elements (COEs), are required relative to a defined reference frame (e.g., the Earth-Centered Inertial frame, ECI).
    | Element | Symbol | Description | Typical Unit |