The JUMPSEAT satellites loitered over the North Pole to spy on the Soviet Union.
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The National Reconnaissance Office, the agency overseeing the US government's fleet of spy satellites, has declassified a decades-old program used to eavesdrop on the Soviet Union's military communication signals.
The program was codenamed Jumpseat, and its existence was already public knowledge through leaks and contemporary media reports. What's new is the NRO's description of the program's purpose, development, and pictures of the satellites themselves.
In a statement, the NRO called Jumpseat "the United States’ first-generation, highly elliptical orbit (HEO) signals-collection satellite."
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Source: Ars Technica
