出典:Wikipedia
出典:『Wikipedia』 (2011/06/06 11:35 UTC 版)
Radar Ocean Reconnaissance SATellite or RORSAT is the western name given to the Soviet Upravlyaemyj Sputnik Aktivnyj (Управляемый Спутник Активный) (US-A) satellites. These satellites were launched between 1967 and 1988 to monitor NATO and merchant vessels using active radar. RORSATs were launched under cover name of Cosmos satellites.