| 释义 |
MEO (Medium Earth Orbit or Middle Earth Orbit) A satellite or satellite constellation (i.e., sys- tem) operating at an altitude of 10,062–20,940 kilometers. Unlike a geosynchronous Earth orbiting (GEO) satellite, MEO and LEO (Low Earth Orbit) satellites do not remain in a fixed position relative to the Earth’s surface, so are referred to as mobile satellite systems (MSSs), as opposed to the fixed satellite systems (FSSs) in geostatic orbit. See also FSS, GEO, LEO, MSS, and satellite. |