Chinese researchers have achieved a record-breaking 1 gigabit-per-second (Gbps) data downlink from a satellite in geostationary orbit (36,000 km above Earth) using an optical laser link – with a laser device as weak as a “night light” or candle in power scmp.com scmp.com. In a recent demonstration, a 2-watt laser beam transmitted data to a…
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Definition and How Geostationary Orbit Works A geostationary orbit (GEO) is a circular orbit around Earth’s equator at approximately 35,786 km altitude (about 22,236 miles) where a satellite orbits once per sidereal day (~23 hours 56 minutes) in the same direction as Earth’s rotation en.wikipedia.org esa.int. This precise altitude and orbital period make the satellite…
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