Istrebitel Sputnikov, or IS (russian: Истребитель спутников, ИС, meaning "destroyer of satellites"Not to be confounded with "sputnik-istrebitel" ("спутник-истребитель"), "fighter satellite".), was a Soviet anti-satellite weapons programme which led to the deployment of the IS-A or I2P system during the 1970s and 1980s. IS satellites were originally intended to launch on UR-200 rockets, but following the cancellation of the UR-200, the Polyot,

Tsyklon-2A The Tsyklon (Циклон, " Cyclone", also known as Tsiklon), GRAU index 11K67, was a Soviet-designed expendable launch system, primarily used to put Cosmos satellites into low Earth orbit. It is based on the R-36 intercontinental ballistic m ...

and Tsyklon-2 rockets were used instead. The first test flights of the IS spacecraft used the I1P configuration, and served to demonstrate the propulsion and control systems of the spacecraft. Both were launched by Polyot rockets, and were designated

Polyot 1 Polyot is a transliteration of the Russian term Полёт (meaning Flight) and can be transliterated as Polyot, Poljot or Polet. Polyot can refer to the following: *Polet Airlines, an airline based in Voronezh, Russia *Poljot, a brand of watches f ...

and

Polyot 2 Polyot is a transliteration of the Russian term Полёт (meaning Flight) and can be transliterated as Polyot, Poljot or Polet. Polyot can refer to the following: *Polet Airlines, an airline based in Voronezh, Russia *Poljot, a brand of watches f ...

. They were launched on 1 November 1963 and 12 April 1964 respectively. Following this, IS-A or I2P interceptors and IS-P or I2M targets were launched. Only four IS-P targets were launched before the type was replaced by the cheaper DS-P1-M satellite, launched as part of the

Dnepropetrovsk Sputnik Dnepropetrovsk Sputnik (russian: Днепропетровский Спутник; ua, Дніпропетровський супутник), also known as DS, was a series of satellites launched by the Soviet Union between 1961 and 1982. DS satel ...

programme. Later IS-A tests intercepted DS-P1-M satellites, or the

Lira Lira is the name of several currency units. It is the current currency of Turkey and also the local name of the currencies of Lebanon and of Syria. It is also the name of several former currencies, including those of Italy, Malta and Israe ...

satellites that succeeded them.

References

{{weapons-stub Space weapons Soviet military spacecraft 1963 in spaceflight 1982 in spaceflight Abandoned military projects of the Soviet Union

See also

References