US-A

Upravlyaemy Sputnik Aktivnyj (Russian:Управляемый Спутник Активный), or US-A, also known in the west as Radar Ocean Reconnaissance Satellite or RORSAT, was a series of Soviet reconnaissance satellites. Launched between 1967 and 1988 to monitor NATO and merchant vessels using active radar, the satellites were powered by nuclear reactors.

单词	RORSAT
释义	RORSAT 英语百科 US-A Upravlyaemy Sputnik Aktivnyj (Russian:Управляемый Спутник Активный), or US-A, also known in the west as Radar Ocean Reconnaissance Satellite or RORSAT, was a series of Soviet reconnaissance satellites. Launched between 1967 and 1988 to monitor NATO and merchant vessels using active radar, the satellites were powered by nuclear reactors.
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