Kosmos 1805

Soviet intelligence satellite

Kosmos 1805 was a Soviet electronic intelligence satellite which was launched in 1986. The first of four Tselina-R satellites to fly, it was constructed by Yuzhnoye with its ELINT payload manufactured by TsNII-108 GKRE. Since it ceased operations it has remained in orbit as space junk, and in April 2012 NASA's Fermi Gamma-ray Space Telescope was forced to maneuver to avoid a collision with the derelict satellite.

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