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; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. C ...

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

Ariane 5 ECA Ariane 5 is a European heavy-lift space launch vehicle developed and operated by Arianespace for the European Space Agency (ESA). It is launched from the Centre Spatial Guyanais (CSG) in French Guiana. It has been used to deliver payloads into ...

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 network based in Mumbai. It was launched on 1 November 2004 and was it owned by Star TV and distributed worldwide by Fox International Channels. In November 2006, Star One was launched in the UK on Sky. S ...

, 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 Brazilian real, reais during ...

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 1980 as the world's first commercial launch service provider. It undertakes the operation and marketing of the Ariane programme. The company offers a number of different launch vehicles: the heavy ...

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 german: Kurz-unten), because it is the lower part of the ori ...

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,Star One C4
''Gunter's Space Page'' Retrieved 16 December 2016 between 10.075

GHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one he ...

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 5, 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, ...

satellite transponders to be used in

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

coverage (the

has 14 transponders of 36

MHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one he ...

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 relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

and

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

, besides Mexico and the

contiguous United States The contiguous United States (officially the conterminous United States) consists of the 48 adjoining U.S. states and the Federal District of the United States of America. The term excludes the only two non-contiguous states, Alaska and Hawaii ...

. 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