Category
page 1Reconnaissance satellites of Russia
Zenit
series of Soviet spy satellites
Tselina
family of Soviet Union/Russian signals intelligence satellites

Oko
Oko (Old ) is a Russian (previously Soviet) missile defence early warning programme consisting of satellites in Molniya and geosynchronous orbits. Oko satellites are used to identify launches of ballistic missiles by detection of their engines' exhaust plume in infrared light, and complement other early warning facilities such as Voronezh, Daryal and Dnepr radars. The information provided by these sensors can be used for the A-135 anti-ballistic missile system which defends Moscow. The satellites are run by the Russian Aerospace Forces, and previously the Russian Aerospace Defence Forces and R
Persona
class of Russian reconnaissance satellites

Kondor
series of Russian satellites
Kosmos 2441
Russian reconnaissance satellite