Dunay radar

Dunay radar
Dunay-3 (NATO: Dog House) radar receiver taken by US KH-7 spy satellite in 1967
Country of originSoviet Union
Introduced1959 (Dunay-2)
1968 (Dunay-3)
1978 (Dunay-3M, Dunay-3U)
No. built3
Typeearly warning radar
FrequencyUHF[1]
Range1,200 km (Dunay-2)
2,500 km (Dunay-3M)
Power100 kW (Dunay-2)
3 MW per sector (Dunay-3M)
Other NamesNATO: Dog House, Cat House, Top Roost, Hen Roost

Dunay radar (Russian: Дунай, romanized: Dunay literally Danube; NATO: Cat House, Dog House) was a system of two Soviet radars used to detect American ballistic missiles fired at Moscow. They were part of the A-35 anti-ballistic missile system.[2] One sector of one of the radars, the Dunay-3U ("Cat House") is still operational and is run by the Russian Space Forces as part of the Main Control Centre of Outer Space.[3]

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