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Orbital Spectrum
Orbit spectrum, also known as satellite spectrum, is a segment of a radio spectrum that became available when satellites are placed into orbit. This spectrum is a limited resource for every country. In order to ensure optimum utilization of orbit spectrum, the national administrations of countries worldwide undertake regular monitoring exercises. This orbit spectrum is used by service providers to implement satellite broadcasting, communication satellite, and weather satellite services. To ensure quality of services, this orbit spectrum must be used by service providers according to the terms and conditions approved by the respective government. Regulatory measures must be enforced. This practice of regulating the spectrum within the limits of permissions or licenses is part of spectrum management. Missions Orbit spectrum requires management which in turn needs effective spectrum monitoring exercises to enforce regulatory measures for ensuring legal usage of spectrum resource. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA Earth-observing Fleet June 2012
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
