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This is a list of satellites in geosynchronous orbit (GSO). These satellites are commonly used for communication purposes, such as radio and television networks, back-haul, and direct broadcast. Traditional global navigation systems do not use geosynchronous satellites, but some SBAS navigation satellites do.
In December 1975, RCA created Satcom 1, the first satellite built especially for use by the then three national television networks (CBS, NBC, and ABC).Later that same year, HBO leased a transponder on Satcom 1 and began transmission of television programs via satellite to cable systems.
Pages in category "Satellite television" The following 186 pages are in this category, out of 186 total. This list may not reflect recent changes. ...
The satellites used for broadcasting television are usually in a geostationary orbit 36,000 km (22,000 mi) above the earth's equator.The advantage of this orbit is that the satellite's orbital period equals the rotation rate of the Earth, so the satellite appears at a fixed position in the sky.
The first satellite placed in a geostationary orbit was Syncom 3, which was launched by a Delta D rocket in 1964. [14] With its increased bandwidth, this satellite was able to transmit live coverage of the Summer Olympics from Japan to America. Geostationary orbits have been in common use ever since, in particular for satellite television. [10]
The DirecTV satellite fleet is a group of communications satellites located at various geostationary orbits that DirecTV uses for their satellite television service and HughesNet (formerly known as DirecWAY and DirecPC) internet service. The "DirecTV" prefix in their names has been changed to "T".
It was also used in its K u band form for the now-defunct Primestar satellite TV service. Some satellites have been launched that have transponders in the K a band, such as DirecTV's SPACEWAY-1 satellite, and Anik F2. NASA and ISRO [39] [40] have also launched experimental satellites carrying K a band beacons recently. [41]
List of GPS satellites; H. List of artificial objects in heliocentric orbit; I. List of Indian satellites; List of Intelsat satellites; K. List of Kosmos satellites; N.