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GEOS-A
Explorer 29, also called GEOS 1 or GEOS A, acronym to Geodetic Earth Orbiting Satellite, was a NASA satellite launched as part of the Explorer program, being the first of the two satellites GEOS. Explorer 29 was launched on 6 November 1965 from Cape Canaveral Space Force Station, Cape Canaveral, Florida, with a Delta (rocket family), Thor-Delta E launch vehicle. Explorer 29 was a Gravity-gradient stabilization, gravity-gradient-stabilized, solar cell powered unit designed exclusively for Geodesy, geodetic studies. It was the first successful active spacecraft of the ''National Geodetic Satellite Program''. Instruments Instrumentation included: * Laser Tracking Reflectors * NASA Minitrack System * Optical Beacon System * Radio Doppler System * Radio Range/Rate System * SECOR Range Transponder These were designed to operate simultaneously to fulfill the objectives of locating observation points (geodetic control stations) in a three-dimensional Earth center of mass coordinate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Explorer Program
The Explorers program is a NASA exploration program that provides flight opportunities for physics, geophysics, heliophysics, and astrophysics investigations from space. Launched in 1958, Explorer 1 was the first spacecraft of the United States to achieve orbit. Over 90 space missions have been launched since. Starting with Explorer 6, it has been operated by NASA, with regular collaboration with a variety of other institutions, including many international partners. Launchers for the Explorer program have included Juno I, Juno II, various Thor, Scout, Delta and Pegasus launch vehicles, and Falcon 9. The program has three classes: Medium-Class Explorers (MIDEX), Small Explorers (SMEX), and University-Class Explorers (UNEX), with select Missions of Opportunity operated with other agencies. History Early Explorer satellites The Explorer program began as a U.S. Army proposal (Project Orbiter) to place a "civilian" artificial satellite into orbit during the International ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
