Everything about Cosmos 954 totally explained
Cosmos 954 was a
Soviet Radar Ocean Reconnaissance Satellite (
RORSAT) with an onboard
nuclear reactor. The
satellite's
reactor core failed to separate and boost into a nuclear-safe
orbit, and instead remained onboard in an orbit that decayed until the satellite
reentered Earth's atmosphere on
January 24,
1978. The satellite crashed in the
Northwest Territories,
Canada, spreading its
radioactive fuel on a path from
Great Slave Lake to
Baker Lake. In an attempt to recover
radioactive material, a search was conducted covering a total of .
Subsequent recovery efforts, named
Operation Morning Light, by a joint
American-Canadian team swept the area by foot and air until the spring ice breakup in April made further searches impractical. They were ultimately able to recover 12 larger pieces of the satellite. These pieces displayed radioactivity of up to 1.1
sieverts per hour, yet they only comprised an estimated 1% of the fuel. For these recovery efforts, the Canadian Government billed the Soviet Union $6,041,174.70 for actual expenses and additional compensation for future unpredicted expenses; the U.S.S.R. eventually paid the sum of 3 million dollars.
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