LEO stands for which type of orbit?

• A. Low Earth Orbit
• B. Light Earth Orbit
• C. Long Earth Orbit
• D. Local Earth Orbit

Answer: (A)

LEO stands for Low Earth Orbit. This describes orbits that are close to Earth’s surface, roughly from about 160 kilometers up to about 2,000 kilometers. Because the altitude is so low, objects in this orbit move quickly to balance gravity, resulting in short orbital periods of about 90 minutes. The proximity to Earth makes ground communication and imagery more practical and reduces signal travel time, which is why many Earth-observing satellites and the International Space Station operate there. The other terms listed aren’t standard orbital classes in spaceflight; they don’t describe recognized altitude ranges, whereas “Low” in Low Earth Orbit accurately conveys the near-Earth altitude category.