A satellite's operational lifetime is bounded by three physical constraints: propellant supply, solar array degradation, and the cumulative toll of the space environment.
A satellite's operational lifetime is bounded by three physical constraints: propellant supply, solar array degradation, and the cumulative toll of the space environment.
LEO satellites decay faster due to drag and radiation. GEO satellites face less drag but are in a harsher radiation environment. Small satellites often have shorter lifetimes because less redundancy is cost-effective.
Most satellite failures fall into a handful of subsystem categories.
A failed satellite remains in orbit — potentially for decades — as an uncontrolled debris object.
You've completed the Satellite Missions 101 module — and with it, the entire Academy re-launch. From orbit basics to launches, maneuvers, constellations, ground tracks, re-entry, and mission types: you now have the full picture. Welcome to the Orbital Radar community.