Encyclopedia Astronautica
Communications satellite


Category of spacecraft.

More... - Chronology...


Associated Spacecraft
  • AEHF The Advanced Extremely High Frequency (AEHF) satellite program was the next generation of global, highly secure, survivable communications system for all services of the US Department of Defense, replacing the Milstar series. The first was finally launched three years behind schedule at a cost that had doubled from the original $5 billion estimate. More...
  • Telstar American communications satellite. 2 launches, 1962.07.10 (Telstar 1) and 1963.05.07 (Telstar 2). More...
  • Intelsat 1 American communications satellite. One launch, 1965.04.06. Intelsat 1, also called Early Bird, was the world's first commercial communications satellite. It provided the first scheduled transoceanic TV service and was operational for 3.5 years. More...
  • Intelsat 2 American communications satellite. 4 launches, 1966.10.26 (Intelsat 2 F-1) to 1967.09.28 (Intelsat 2 F-4). The Intelsat 2 series expanded ITSO coverage to include 2/3 of the Earth's surface. More...
  • Intelsat 3 American communications satellite. 8 launches, 1968.09.19 (Intelsat-3 F-1) to 1970.07.23 (Intelsat 3 F-8). Intelsat 3 spacecraft were used to relay commercial global telecommunications including live TV. More...
  • Peole French communications satellite. One launch, 1970.12.12. Gathered data from meteorological balloon system. More...
  • Intelsat 4 American communications satellite. 8 launches, 1971.01.26 (Intelsat 4 F-2) to 1975.05.22 (Intelsat 4 F-1). The Intelsat 4 series continued the growth of the Intelsat communications network. More...
  • Molniya-2 Russian communications satellite. 20 launches, 1971.11.24 (Molniya 2-01) to 2005.06.21 (Molniya 2-17). Molniya-2 was the elliptical orbit component of the Soviet YeSSS communications satellite system. More...
  • HS 333 American communications satellite. 8 launches, 1972.11.10 (Anik A1) to 1979.08.10 (Westar 3). The satellites, act as space repeaters capable of receiving transmissions from earth stations and retransmitting them to other earth stations in Canada. More...
  • Raduga First Soviet geosynchronous communications satellite. Operational, first launch 1974.03.26. A single orbital group of two Radugas could handle all communications of the Russian eastern regions. More...
  • Molniya-3 Russian communications satellite. 55 launches, 1974.11.21 (Molniya 3-01) to 2003.06.19 (Molniya 3-53). Development of the Molniya-2M communications satellite, later called Molniya-3, began in 1972. Flight trials began in November 1974. More...
  • Spacebus 100 French communications satellite. 12 launches, 1975.08.26 (Symphonie 2) to 1994.01.24 (Eutelsat II F5). 3-axis stabilized using bipropellant thrusters (750 kg propellant - unified with apogee insertion and maneuvering propulsion) and momentum wheels. More...
  • Intelsat 4A American communications satellite. 10 launches, 1975.09.26 (Intelsat 4A F-1) to 1981.02.21 (Comstar 4). Intelsat 4A satellites increased satellite capacity to 7250 voice circuits or 2 TV channels. More...
  • AS 1000 American communications satellite. 3 launches, 1975.12.13 (Satcom 1) to 1979.12.07 (RCA Satcom 3). More...
  • CTS Canadian communications satellite. One launch, 1976.01.17. Canadian Telecommunications Satellite project. Only one spacecraft launched. More...
  • Marisat American communications satellite. 3 launches, 1976.02.19 (Marisat 1) to 1976.10.14 (Marisat 3). Maritime communications. More...
  • Ekran Russian communications satellite. 21 launches, 1976.10.26 (Ekran 1) to 1988.05.06 (Ekran 18). Ekran was the Soviet Union's first geosynchronous satellite. More...
  • ECS/OTS European communications satellite. 20 launches, 1977.09.13 (OTS 1) to 2001.02.07 (Skynet 4F). More...
  • CS-1 Japanese communications satellite. One launch, 1977.12.15, Sakura. This Medium-capacity Communications Satellite for Experimental Purposes was a spin stabilized geostationary communications satellite. More...
  • Anik Canadian communications satellite. 2 launches, 1978.12.15 (Anik B1 (Telesat 4)) and (DRIMS). Function - telecommunications. Operating entity - Telesat Canada. More...
  • Gorizont Russian communications satellite. 35 launches, 1978.12.19 (Gorizont 1) to 2000.06.06 (Gorizont). Gorizont-1 was designed specifically to support broadcast of the 1980 Olympic Games from Russia. More...
  • HS 376 American communications satellite. 56 launches, 1980.11.15 (SBS 1) to 2003.09.27 (E-Bird). Mass 654 kg at beginning-of-life in geosynchronous orbit. Spin stabilized at 50 rpm by 4 hydrazine thrusters with 136 kg propellant. More...
  • Intelsat 5 American communications satellite. 9 launches, 1980.12.06 (Intelsat 5 F-2) to 1984.06.09 (Intelsat 5 F-9). The last five of the nine spacecraft in this block carry a maritime mobile payload (seven additional transponders) for lease by Inmarsat. More...
  • Insat 1 Indian communications satellite. 5 launches, 1981.06.19 (Apple) to 1990.06.12 (Insat-1D; Insat 1D). Experimental communications satellite. More...
  • AS 3000 American communications satellite. 25 launches, 1981.11.20 (RCA Satcom 4; RCA Satcom 3R) to 1996.01.14 (Koreasat 2). More...
  • CS-2 Japanese communications satellite. 2 launches, 1983.02.04 (Sakura 2A) to 1983.08.05 (Sakura 2B). Business communications. Launching organization NASDA (National Space Development Agency of Japan). More...
  • HILAT American communications satellite. One launch, 1983.06.27. Communications technology tests. Spacecraft engaged in practical applications and uses of space technology such as weather or communication. More...
  • Globis Russian communications satellite. Studied 1984-1994. Lox/LH2 upper stages launched by Energia would put 21 metric ton communications satellites into geosynchronous orbit. More...
  • Intelsat 5A American communications satellite. 6 launches, 1985.03.22 (Intelsat 5A F-10) to 1989.01.27 (Intelsat 5A F-15). The Intelsat 5A series was derived from the Intelsat 5. More...
  • AS 4000 American communications satellite. 8 launches, 1985.11.27 (Satcom K2) to 1998.02.04 (Inmarsat 3 F5). 3-axis stabilization with momentum wheels, magnetic torquers, Earth sensors and 16 blowdown monopropellant hydrazine thrusters. More...
  • Ekran-M Russian communications satellite. 6 launches, 1987.01.30 (Cosmos 1817) to 2001.04.07 (Ekran-M No. 18). Ekran-M provided unique direct television broadcasting service to community users in the central Russian Federation region (Zone 3). More...
  • Spacebus 300 French communications satellite. 5 launches, 1987.11.21 (TVSAT 1) to 1990.07.24 (TDF 2). 3-axis stabilized using bipropellant thrusters (1220 kg propellant - unified with apogee insertion and maneuvering propulsion) and momentum wheels. More...
  • CS-3 Japanese communications satellite. 2 launches, 1988.02.19 (Sakura 3A) to 1988.09.16 (Sakura 3B). To continue communications services provided by the communications satellite 2 (CS-2). To meet increasing and diversifying demands for communications. More...
  • Eurostar 2000 French communications satellite. 24 launches, 1988.03.11 (Telecom 1C) to 2006.11.08 (Badr 4 ARABSAT 4B). More...
  • HS 393 American communications satellite. 7 launches, 1989.03.06 (JCSAT 1) to 1991.10.29 (Intelsat 6A F-1). Domestic communication. Launching states: Japan, France, USA. At the time, these were the largest commercial spacecraft ever built. More...
  • FS-1300 American communications satellite bus. Operational, first launch 1989.06.05. More...
  • Raduga-1 Russian communications satellite. 8 launches, 1989.06.21 (Raduga 1-1) to 2007.12.09 (Raduga-1). The Raduga-1 geosynchronous communications satellite was to have been the basis for the YeSSS-2 second generation Unified Satellite Communication System. More...
  • HS 601 American communications satellite bus. First launch 1990.01.09. 3-axis unified ARC 22 N and one Marquardt 490 N bipropellant thrusters, Sun and Barnes Earth sensors and two 61 Nms 2-axis gimbaled momentum bias wheels. More...
  • Eurostar 1000 French communications satellite. 4 launches, 1990.10.30 (Inmarsat 2 F1) to 1992.04.15 (Inmarsat 2 F4). The Eurostar 1000 platform was the first generation of Matra Marconi Space GEO satellite platforms serving mainly commercial telecoms applications. More...
  • Mayak Russian communications satellite. Study 1990. In 1990 the Applied Mechanics NPO announced that it was developing a successor to the Molniya series of spacecraft. More...
  • SovCanStar Russian communications satellite. Study 1990. One of the early Russian-Western satellite programs was SovCanStar, a 1990 joint venture with Canada. More...
  • Italsat Italian communications satellite. 6 launches, 1991.01.15 (Italsat 1) to 2009-04-20. More...
  • Informator Russian communications satellite. One launch, 1991.01.29, Oscar 21. Informator was the spacecraft component of the planned Koskon medium earth-orbit communications satellite system. More...
  • AS 5000 American communications satellite. 4 launches, 1991.03.02 (Astra 1B) to 1992.06.10 (Intelsat K). 3-axis stabilization with momentum wheels, magnetic torquers, Earth sensors and 20 blowdown monopropellant hydrazine thrusters. More...
  • Radiobook Russian communications satellite. Study 1991. The Radiobook network would utilize from 24 to 36 micro-satellites (10 kg or less) in a packet radio network, which could be launched with small boosters, including air-launched missiles. More...
  • Zerkalo Russian communications satellite. In 1991 Lavochkin NPO teamed up with NOOS Space Technologies Ltd. Of Moscow to develop the Zerkalo spacecraft and telecommunications system. More...
  • Insat 2 Indian communications satellite. 5 launches, 1992.07.09 (Insat-2A) to 1999.04.02 (Insat 2E). More...
  • Nord Russian communications satellite. Study 1992. The Lavochkin NPO proposed the Nord highly elliptical communications systems in 1992. Nord was described as a 4-satellite network of 2,300-kg spacecraft launched by the Rus booster. More...
  • AS 7000 American communications satellite. 13 launches, 1993.12.16 (Telstar 401) to 1998.06.18 (Intelsat 805). 3-axis stabilized. Two large solar panels with 1-axis articulation. More...
  • Globsat Russian communications satellite. Study 1993. The Salyut Design Bureau proposed the least ambitious of all Russian low earth orbit communications systems. More...
  • Pallada Russian communications satellite. Study 1993. The Pallada network was devised by the Moscow Radio Communications Research Institute for Commonwealth of Independent States communications services, including voice, telegraph, fax, and data transmissions. More...
  • Gals Russian communications satellite. 2 launches, 1994.01.20 (Gals) and 1995.11.17 (Gals-2). Direct broadcasting satellite (new generation of satellites) intended for development of the Russian television system and international cooperation. More...
  • Spacebus 2000 French communications satellite. 5 launches, 1994.01.24 (Turksat 1A) to 1997.01.30 (Nahuel 1A). More...
  • HS 376W American communications satellite. 4 launches, 1994.08.10 (Brasilsat B1) to 2000.08.17 (Brasilsat B-4). Based on Hughes HS-376, single antenna on despun platform, spin stabilized, hydrazine thrusters, body mounted solar cells provide 982 W BOL. More...
  • Ekspress Russian communications satellite. 15 launches, 1994.10.13 to 2009-02-11. The Ekspress series communications satellite closely resembled the Gals spacecraft and shared a similar spacecraft bus. More...
  • Geostar-MSS Russian communications satellite. Study 1994. The Lavochkin Geostar-MSS communications system was designed in association with Moscow NII Radio-communications. More...
  • Tyulpan Comsat Russian communications satellite. By 1994 Lavochkin's Tyulpan system was promoted more heavily than its earlier Nord system. More...
  • GemStar American communications satellite. One launch, 1995.08.15. Global Electronic Messaging Satellite. More...
  • Gelikon Russian communications satellite. Study 1995. An early Applied Mechanics NPO plan to replace Gorizont and Ekran spacecraft revolved around the Gelikon project. More...
  • Konvert Russian communications satellite. Study 1995. The Elas Scientific Production Association was a principal participant in the proposed Kuryer communications system of Konvert spacecraft. More...
  • Signal Russian communications satellite. Study 1995. The RKK Energia and Polyot PO teamed up with other industries to propose the Signal constellation of low earth orbit communications satellites. More...
  • AMOS Israeli communications satellite. 3 launches, 1996.05.16 (AMOS) to 2008.04.28 (Amos-2). 7 Ku-band transponders. Israeli indigenous communications satellite program. More...
  • AS 2100 American communications satellite. Operational, first launch 1996.09.08 (GE 1). Cost per satellite $100 million for the spacecraft including ground support equipment, but not including launch costs. 3-axis stabilized. More...
  • Arkos Russian communications satellite. Study 1996. Applied Mechanics' Arkos satellite was to have served as the geosynchronous anchor of the Marathon telecommunications network, while the highly elliptical Mayak spacecraft completed the system. More...
  • LM 700 American communications satellite. 98 launches, 1997.05.05 (Iridium 8) to 2002.06.20 (Iridium SV98 ). The LM 700 had its first use in the Iridium system, a commercial communications network comprised of a minimum of 66 LEO spacecraft. More...
  • Star bus American communications satellite bus. Operational, first launch 1997.11.12 (Cakrawarta 1). The Orbital Star bus was designed for reliable and robust performance in a variety of LEO and GEO missions. More...
  • Kondor Russian communications satellite. Study 1997. The Khrunichev State Space Research and Production Center (including the Salyut Design Bureau), proposed the Kondor communications system for mobile users. More...
  • Odyssey American communications satellite network. Operations were planned in 1997 to begin by the end of 1998. However in the event the entire enterprise was cancelled when the dot-com / MEO satellite bubble burst. More...
  • Globalstar American communications satellite. 72 launches, 1998.02.14 (Globalstar FM1) to 2007.10.20 (Globalstar D). The Globalstar constellation was a Medium Earth Orbit system for mobile voice and data communications. More...
  • Kakehashi Japanese communications satellite. One launch, 1998.02.21. Name means 'Bridge', was called Communications and Broadcasting Experimental Test Satellite (COMETS) before launch. It contained Ka-band communications and inter-satellite data relay payloads. More...
  • Teledesic American communications satellite. One launch, 1998.02.26. The Teledesic system was announced in 2004, and was to have provided global communication links via a constellation of 288 LEO spacecraft. More...
  • Yamal Russian communications satellite. 4 launches, 1999.09.06 (Yamal 101) to 2003.11.24 (Yamal-200 KA-2). The Yamal communications satellite bus was developed by RKK Energia for Gazprom. More...
  • LMI Russian communications satellite. One launch, 1999.09.26. Lockheed Martin Intersputnik's LMI-1 satellite was a joint Russian-American venture. LMI-1 provided communications services to Eastern Europe and Central Asia. More...
  • HS 702 American communications satellite bus. Operational, first launched 1999.12.22. More...
  • Insat 3 Indian communications satellite bus. Operational, first launch 2000.03.21. The multipurpose satellite design provided telecommunications, television broadcasting, meteorological and search and rescue services. More...
  • GSat Indian communications satellite bus. First launch 2001.04.18. More...
  • DRTS Japanese geostationary communications satellite. One launch, 2002.09.10. DRTS (Data Relay Transponder Satellite) relayed images and data procured by the ADEOS 2 and ALOS satellites, and the KIBO module on ISS. More...
  • FedSat Australian communications satellite. One launch, 2002.12.14. FedSat contained high-tech communication, space science, navigation and computing equipment and was intended to help bring broadband Internet services to remote parts of Australia. More...
  • Spacebus 4000 European communications satellite bus. Operational, first launch 2005.02.03. The Spacebus 4000 represented a new larger platform to meet customer demand. More...
  • Eurostar 3000 French communications satellite bus. Operational, first launch 2005.03.11 (Inmarsat 4-F1). Third generation of Matra Marconi Space GEO satellite platforms serving mainly commercial telecommunications applications. More...
  • Kirari Japanese communications satellite. One launch, 2005.08.23. Optical Inter-Orbit Communications Engineering Test Satellite. Its laser communications experiment was be used in with ESA's Artemis geostationary satellite. More...
  • DS2000 Japanese communications satellite bus. Operational, first launch 2006.02.18. Mitsubishi Electric developed the DS2000 standard satellite platform based on a design originally created for the DRTS and ETS-8 platforms for NASDA. More...
  • Yakhta Russian communications satellite. One launch, 2006.06.17, Kazsat 1. RKK Energia-developed communications satellite, believed to be a larger development of the Yamal. More...
  • Kizuna Japanese communications satellite. One launch, 2008.02.23. More...
  • 20.20 American communications satellite. Design of 2008, provided greater digital communications capacity by integrating next-generation technologies with the proven reliability of traditional concepts and products of the FS 1300 series. More...
  • Zohreh Iranian communications satellite. In development, 2008. Iranian geosynchronous communications satellite that was to be built with Russian assistance, containing an Alcatel communications payload. More...

Home - Browse - Contact
© / Conditions for Use