An orbit system refers to a structured arrangement involving a primary celestial body—such as the Earth or Sun—and secondary objects like planets, moons, or artificial satellites bound to it by mutual gravitational interaction. In aerospace engineering and telecommunications, an orbit system also encompasses the coordinated network of ground control stations, tracking telemetry links, and multi-satellite constellations working together to deliver continuous operational capabilities, such as global positioning, meteorological imaging, or uninterrupted data relay.