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- Three Corner Satellite (or 3CS, or 3CornerSat) consisted of three student-built microsatellites flying in formation. Primary mission objectives were to demonstrate formation flying, provide stereoscopic imaging of cloud formations, and demonstrate distributed and autonomous operations. A pair of spacecraft, Ralphie and Sparkie, was developed by the University of Colorado at Boulder and Arizona State University as part of the Air Force Research Laboratory's University Nanosat Program. A third satellite, Petey, developed by New Mexico State University was originally also part of the 3CS. The 3CS stack was originally slated for launch aboard the Space Shuttle in 2003, but after the Shuttle Columbia tragedy, mission organizers switched to the first launch of the Boeing Delta IV Heavy rocket. Due to a problem with the rocket during launch, the 3CS satellites on board, Sparkie and Ralphie, failed to achieve orbit. The satellites were to have been dropped off at a low 180 km × 240 km, but they entered orbit at a height of only 105 km, which led to a rapid decay. The third 3CS satellite Petey was not aboard the 3CS launch on Delta IV Heavy (due to the fitting only being able to hold two spacecraft; Petey was used for ground software and communications testing ) and was later donated to the National Air and Space Museum’s Steven F. Udvar-Hazy Center. (en)
- O projeto 3 Corner Satellite, também conhecido como 3CS, 3CornerSat e 3CSat, consistiu originalmente em um conjunto de três satélites artificiais construídos e desenvolvidos por várias universidades (a Universidade do Colorado em Boulder, a Universidade do Estado do Arizona e da Universidade do Estado do Novo México) em conjunto com o Laboratório de Pesquisa da Força Aérea. Finalmente foram lançados dois dos três satélites em 21 de Dezembro de 2004 por um foguete Delta IV Heavy a partir da Estação da Força Aérea de Cabo Canaveral, entrando em uma órbita muito mais baixa do que o previsto e se desintegrando pouco depois na atmosfera. (pt)
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- Technology demonstration (en)
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- Two 3CS satellites undergoing testing (en)
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- O projeto 3 Corner Satellite, também conhecido como 3CS, 3CornerSat e 3CSat, consistiu originalmente em um conjunto de três satélites artificiais construídos e desenvolvidos por várias universidades (a Universidade do Colorado em Boulder, a Universidade do Estado do Arizona e da Universidade do Estado do Novo México) em conjunto com o Laboratório de Pesquisa da Força Aérea. Finalmente foram lançados dois dos três satélites em 21 de Dezembro de 2004 por um foguete Delta IV Heavy a partir da Estação da Força Aérea de Cabo Canaveral, entrando em uma órbita muito mais baixa do que o previsto e se desintegrando pouco depois na atmosfera. (pt)
- Three Corner Satellite (or 3CS, or 3CornerSat) consisted of three student-built microsatellites flying in formation. Primary mission objectives were to demonstrate formation flying, provide stereoscopic imaging of cloud formations, and demonstrate distributed and autonomous operations. A pair of spacecraft, Ralphie and Sparkie, was developed by the University of Colorado at Boulder and Arizona State University as part of the Air Force Research Laboratory's University Nanosat Program. A third satellite, Petey, developed by New Mexico State University was originally also part of the 3CS. (en)
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- 3 Corner Satellite (en)
- 3 Corner Satellite (pt)
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