Star One C4 is a Brazilian

communications satellite A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a Transponder (satellite communications), transponder; it creates a communication channel between a source transmitter and a Rad ...

. It was launched on 15 July 2015, 21:05

UTC Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...

by an

Ariane 5 ECA Ariane 5 is a retired European Heavy-lift launch vehicle, heavy-lift space launch vehicle operated by Arianespace for the European Space Agency (ESA). It was launched from the Guiana Space Centre (CSG) in French Guiana. It was used to deliver p ...

launch vehicle, as part of a dual-payload launch with MSG-4. It was built by

Space Systems/Loral SSL, formerly Space Systems/Loral, LLC (SS/L), of Palo Alto, California, is a wholly owned manufacturing subsidiary of Maxar Technologies. SSL designs and builds satellites and space systems for a wide variety of government and commercial cust ...

, based on th
SSL 1300E bus satellite
. It will be operated by

Star One Star One was an Indian pay television channel based in Mumbai and owned by Star TV, with worldwide distribution handled by Fox International Channels. Launched on 1 November 2004, Star One was launched in the UK on Sky in November 2006. Sta ...

, a subsidiary of

Embratel Embratel is a major Brazilian telecommunications company headquartered in Rio de Janeiro. The company was the long distance arm of Telebras until it was bought by the U.S. company MCI Communications for 2.65 billion reais during the 1998 bre ...

History

The contract for the construction of Star One C4 was made in the year 2012, the company responsible was Space Systems/Loral, the date of completion of its construction and official launch occurred in July 2015. The launch date was confirmed by

Arianespace Arianespace SA is a French company founded in March 1980 as the world's first commercial launch service provider. It operates two launch vehicles: Vega C, a Small-lift launch vehicle, small-lift rocket, and Ariane 6, a Medium-lift launch vehicl ...

on 23 June 2015. And the launching would take place on 8 July 2015. On 3 July 2015, the launcher announced the postponement of the launch for 15 July 2021, due additional checks.

Capacity and coverage

The Star One C4 is equipped with 48

Ku-band The Ku band () is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally ), because it is the lower part of the original NATO K band ...

transponders In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend of ''transmitter'' and ''responder''. In air navigation or radio frequency identification, a flight trans ...

(equivalent to 36 MHz) it covers almost the entire Ku-band, between 10.075

GHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or Cycle per second, cycle) per second. The hertz is an SI derived unit whose formal expression in ter ...

and 12.2 GHz and must release some of the

Star One C2 Star One C2 is a Brazilian communications satellite. It was launched on 18 April 2008 22:17 UTC by an Ariane 5ECA carrier rocket, as part of a dual-payload launch with Vinasat-1. It was built by Thales Alenia Space, based on the Spacebus-3000B3 ...

satellite transponders to be used in

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

coverage (the

has 14 transponders of 36

MHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base u ...

and two of 72 MHz). Ensuring the coverage of the entire national territory and ensuring the expansion of service to the west of

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

and

Central America Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to the southwest. Central America is usually ...

, besides Mexico and the

contiguous United States The contiguous United States, also known as the U.S. mainland, officially referred to as the conterminous United States, consists of the 48 adjoining U.S. states and the District of Columbia of the United States in central North America. The te ...

. The satellite has a power of 15.6 kW and has a park of 24 to 30 million satellite dishes aimed.

References

Communications satellites in geosynchronous orbit Spacecraft launched in 2015 Star One satellites {{Brazil-spacecraft-stub, nocat=yes

History

Capacity and coverage

See also

References