TAILIEUCHUNG - Fiber Optics Illustrated Dictionary - Part 42

The Fiber Optics Illustrated Dictionary - Part 42 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary geostationary orbit A type of orbit that is timed with the movement of the body it is orbiting so the period is equal to the average rotational period of the orbited body. If in addition the orbit is circular the satellite will appear to be not moving when viewed from the ground hence the name. In simpler terms if you place a satellite in a circular orbit at about 35 900 to 42 164 km from the ground it will appear to remain in the same place because of its synchronized relationship to the Earth s orbit. This type of orbit has some advantages for communications. The satellite is always available at the same location and not many high altitude satellites are needed to provide global coverage. The main disadvantage is that powerful sending and receiving stations are needed to send and receive signals to froin such a high orbit. Geostationary orbits were described by Arthur C. Clarke in the 1940s and 1950s in considerable detail and with remarkable foresight. Also cal led geosynchronous orbit and fixed satellite orbit. Geostationary Orbit In a geostationary orbit the movement of the satellite keeps pace with the movement of the Earth and is thus within the same general visual and communications region at all limes as seen from the Earth. geosynchronous orbit See geostationary orbit. GEOTAIL A Japanese research satellite launched in 1992 to study the structure and dynamics of the tail region of the Earth s magnetosphere. The orbit of the satellite was planned so it would cover the magnetotail over a wide range of distances. It contains instruments to measure the magnetic field the electric field plasma energetic particles and plasma waves http German Space Operations Center GSOC. A complex located near Munich Germany that was originally established to support the first German research satellite AZUR launched in 1969. GSOC is a facility of the German Space Missions Directorate DLR that prepares and executes national

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