lowEarthorbit
Low Earth orbit (LEO) refers to orbits close to the Earth's surface, typically defined as altitudes from about 160 kilometers (100 miles) to 2,000 kilometers (1,200 miles). In LEO, objects complete an orbit roughly every 90 to 120 minutes, depending on altitude and inclination. The proximity to Earth enables high‑resolution imaging, relatively low-latency communications, and easier crewed access, but it also subjects spacecraft to higher atmospheric drag and radiation compared with higher orbits.
Because of these characteristics, most spaceborne platforms placed in the near-Earth region are satellites for Earth
Atmospheric drag in LEO causes gradual orbital decay that requires occasional reboosts to maintain altitude and
Space debris and collision avoidance are significant concerns in LEO due to the high density of man-made