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Intersputnik

From Wikipedia, the free encyclopedia
Intersputnik
Intersputnik International Organization of Space Communications
Formation15 November 1971; 54 years ago (15 November 1971)
Legal statusActive
HeadquartersMoscow, Russia
Members25 member states
Official language
Russian
Director General
Ksenia Drozdova[1]
Websiteintersputnik.int

The Intersputnik International Organization of Space Communications, commonly known as Intersputnik, is an international satellite communications services organization founded on 15 November 1971, in Moscow by the Soviet Union along with a group of seven formerly socialist states (Poland, Czechoslovakia, East Germany, Hungary, Romania, Bulgaria, Mongolia) and Cuba.

The objective was and continues to be the development and common use of communications satellites. It was created as the Eastern Bloc's response to the Western Intelsat organization. As of 2026, the organization has 25 member states. In turn with political realignments, a number of countries have left (Germany and Poland) or are in the process of leaving (Czechia, Bulgaria and Ukraine).

Intersputnik nowadays is a commercially aligned organization. It operates 12 satellites in orbit and 41 transponders. In June 1997 Intersputnik created the Lockheed Martin Intersputnik (LMI) joint venture together with Lockheed Martin, which built and operated the satellites of the same name. In September 2006, Lockheed Martin Intersputnik was acquired by Asia Broadcast Satellite (ABS).

History

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Initially, the Intersputnik system was created on the basis of the Soviet Orbit-2 satellite broadcasting network and was designed to serve the countries participating in the Council for Mutual Economic Assistance (Comecon). The main system and technical developments were carried out by NIIR, radio receiving equipment was produced at the Moscow Radio Engineering Plant, antenna-feeder devices at the Podolsk Electromechanical Plant, radio transmitting and channel-forming equipment was manufactured by the Krasnoyarsk TV Plant.

In the initial version, Intersputnik used highly elliptical satellites of the Molniya-3 type, and in 1978 it began using geostationary satellites of the Gorizont type. Receiving complexes "Orbita-2" with transmitters "Gradient-K" and channel-forming equipment RS-1, RS-2 operated at the earth stations. In the process of modernization, the transmitters were replaced by more modern Helikon type with a power of 3 kW and new channel-forming equipment “Gradient-N” began to be used. Subsequently, the Research Institute for Telecommunication (TKI) in Budapest took part in the development of the equipment for Intersputnik, and factories in Hungary and Czechoslovakia were connected to production.[2]

Member states

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Intersputnik member states as of 2026

The United Nations Office for Outer Space Affairs maintains a list of space treaty member countries, including the Intersputnik treaty.[4]

Currently withdrawing

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Former

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See also

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References

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  1. ↑ "Directorate". Intersputnik.net. Archived from the original on November 26, 2023. Retrieved March 4, 2021.
  2. ↑ Vonog A. I. Intersputnik system. Krasnoyarsk TV plant. Our story. Retrieved March 4, 2021.
  3. ↑ "Member Countries". Intersputnik. Archived from the original on 26 November 2023. Retrieved 24 July 2022.
  4. ↑ "Status of International Agreements relating to Activities in Outer Space". Retrieved 2025-05-24.
  5. ↑ "Bulgaria leaves Intersputnik". Retrieved 2025-05-24.
  6. ↑ "ČR odejde z organizace Intersputnik se sídlem v Moskvě | ČeskéNoviny.cz". www.ceskenoviny.cz (in Czech). Retrieved 2025-02-13.
  7. ↑ "Entwurf zur Aufhebung des Intersputnik-Gesetzes vorgelegt" (in German). Retrieved 2025-05-24.
  8. ↑ Oświadczenie rządowe z dnia 13 marca 2025 r. o utracie mocy obowiązującej w stosunku do Rzeczypospolitej Polskiej Porozumienia o zdolności prawnej, przywilejach i immunitetach Międzynarodowej Organizacji Łączności Kosmicznej "Intersputnik", sporządzonego w Berlinie dnia 20 września 1976 r. [Government statement of March 13, 2025 on the loss of validity for the Republic of Poland of the Agreement on Legal Capacity, Privileges and Immunities of the International Space Communications Organization “Intersputnik”, made in Berlin on September 20, 1976], Dz. U., 2025, No. 478 (2025-03-13)
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