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COSMO-1
COSMO-1 or COSMO-Skymed 1 is an Italian radar imaging satellite. Launched in 2007, it was the first of four COSMO-Skymed satellites to be placed into orbit. The spacecraft is operated by the Agenzia Spaziale Italiana, the Italian space agency, in conjunction with Italy's Ministry of Defence. It uses synthetic aperture radar to produce images for civilian, commercial and military purposes.〔(【引用サイトリンク】title=COSMO-SkyMed )〕
COSMO-1 was constructed by Thales Alenia Space, based on the Prima bus. It was the first Prima-based spacecraft to be launched. Designed for a five-year mission, the satellite remains operational .
ASI awarded Boeing a contract to launch COSMO-1, with the launch being subcontracted to United Launch Alliance when it was formed to take over Delta launch operations. The launch took place at 02:34:00 UTC on 8 June 2007. A Delta II rocket in the 7420-10C configuration, flight number Delta 324, lifted off from Space Launch Complex 2W at Vandenberg Air Force Base, successfully injecting the satellite into low Earth orbit. Spacecraft separation occurred 58 minutes and 5 seconds after liftoff.
The satellite operates in a sun-synchronous low Earth orbit. As of it was located in an orbit with a perigee of , an apogee of , inclined at degrees to the equator. It has an orbital period of minutes, with right ascension of the ascending node of degrees and an argument of perigee of degrees.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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