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. 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 As of 2013.