T15 (satellite)
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T15 (satellite)
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". Satellite table Defunct satellites are highlighted in gold. Details of satellite fleet DirecTV 1 The first of the fleet, DirecTV 1, launched on December 17, 1993 aboard a Ariane 4 launch vehicle. DirecTV 1 commenced operations on June 17, 1994, positioned at 101.2° W. The satellite experienced a satellite control processor failure in July 1998, but the satellite was able to continue operating on its backup SCP for the rest of its operational life. In 1999, the satellite was relocated to 110° W. In June 2003, the satellite was relocated back to 101.2° W, as the satellite was incapable of providing service to Hawaii. In July 2005, the satellite was relocated to 72.5° W, as ...
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Communications Satellites
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 Radio receiver, receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so ...
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95th Meridian West
The meridian 95° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Gulf of Mexico, Central America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole. The 95th meridian west forms a great circle with the 85th meridian east. From Pole to Pole Starting at the North Pole and heading south to the South Pole, the 95th meridian west passes through: : See also * 94th meridian west *96th meridian west The meridian 96° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Gulf of Mexico, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole. The 96th meridian w ... {{geographical coordinates, state=collapsed w095 meridian west ...
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Astrium
Astrium was an aerospace manufacturer subsidiary of the European Aeronautic Defence and Space Company (EADS) that provided civil and military space systems and services from 2006 to 2013. In 2012, Astrium had a turnover of €5.8 billion and 18,000 employees in France, Germany, the United Kingdom, Spain and the Netherlands. Astrium was a member of Institute of Space, its Applications and Technologies. In late 2013 Astrium was merged with Cassidian, the defence division of EADS and Airbus Military to form Airbus Defence and Space. EADS itself was reorganized as the Airbus Group, with three divisions that include Airbus, Airbus Defence and Space, and Airbus Helicopters. Business structure During 2006–2013, the three main areas of activity within Astrium were: * Astrium Satellites for spacecraft and ground segment * EADS Astrium Space Transportation for launchers and orbital infrastructure * Astrium Services for the development and delivery of satellite services. Satellites ...
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DirecTV-15
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". Satellite table Defunct satellites are highlighted in gold. Details of satellite fleet DirecTV 1 The first of the fleet, DirecTV 1, launched on December 17, 1993 aboard a Ariane 4 launch vehicle. DirecTV 1 commenced operations on June 17, 1994, positioned at 101.2° W. The satellite experienced a satellite control processor failure in July 1998, but the satellite was able to continue operating on its backup SCP for the rest of its operational life. In 1999, the satellite was relocated to 110° W. In June 2003, the satellite was relocated back to 101.2° W, as the satellite was incapable of providing service to Hawaii. In July 2005, the satellite was relocated to 72.5° W, as ...
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T14 (satellite)
T14 (formerly DirecTV-14) is a communication satellite launched on December 6, 2014. It is the first satellite offering Ultra-HD 4K television services using Reverse DBS. The satellite adopted its current name in 2017. Overview The T14 satellite is the sixth satellite built by SSL (Space Systems/Loral) for operator DirecTV. The high-capacity spacecraft is based on the SSL 1300 platform, T14 is a 20-kilowatt class Ka-band and reverse-band digital broadcast satellite that will be used to deliver Ultra HD and other new consumer services for DirecTV. DirecTV delivers hundreds of channels of digital programming to more than 31 million customers in the U.S. and Latin America with small-diameter dish antennas. This satellite provides service for users across the U.S. (including Hawaii and Alaska) and Puerto Rico. The satellite had a liftoff mass of approximately 6,300 kg. T14 is expected to operate for 15 years, or until 2029. Michael White, chairman, president and CEO of DirecTV, ...
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T12 (satellite)
T12, formerly known as D12, is a Boeing model 702 satellite built by the Boeing Satellite Development Center. It was launched on December 29, 2009 and became operational on May 19, 2010. It is used by DirecTV to provide additional high definition channels and Video on demand content, as well as 3DTV channels and content. The satellite adopted its current name in 2017. Technology This satellite is similar to T10 and T11, but features a 17/24 GHz BSS payload carrying the moniker RB-2A. It is co-located with T10 very near 103.0°W. Launch data On November 27, the satellite was shipped to the Baikonur Cosmodrome in the Kazakhstan desert from the Boeing facility in El Segundo, California. T12 was launched successfully by International Launch Services on December 29, 2009 at 6:22 AM Kahzakstan time (00:22 UTC)
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T11 (satellite)
T11, formerly known as DirecTV-11, is a Boeing model 702 satellite built by the Boeing Satellite Development Center. Its current name was adopted in 2017. Technology This satellite is functionally identical to T10 and is co-located with SPACEWAY-2 at or very near 99.225°W. Launch data T11 had originally been scheduled for launch by Sea Launch in November, 2007. Following a launch failure at Sea Launch that resulted in damage to the facility, the expected launch date was changed to March 19, 2008. Launch occurred at 22:47:59 UTC on March 19, 2008, and the spacecraft separated from the carrier rocket 61 minutes later, following a successful ascent. Testing Boeing handed over the T11 satellite to DirecTV on Monday, July 21, 2008, according to a press release on the Boeing website. This means that the satellite is "parked" at or extremely close to its final location of 99.225ºW. Customers with High-Definition receivers or High-Definition DVRs can see new satellite reading ...
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T10 (satellite)
T10 (formerly DirecTV-10) is a Boeing model 702 direct broadcast satellite that provides high-definition television (HDTV) to DirecTV subscribers in North America.Boeing Directv-10 specifications
It was launched by on July 7, 2007 from the in aboard an
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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 geostationary transfer orbit (GTO) or low Earth orbit (LEO). The launch vehicle had a streak of 82 consecutive successful launches between 9 April 2003 and 12 December 2017. Since 2014, Ariane 6, a direct successor system, is in development. The system was designed as an expendable launch system by the ''Centre national d'études spatiales'' (CNES), the French government's space agency, in cooperation with various European partners. Despite not being a direct derivative of its predecessor launch vehicle program, it is classified as part of the Ariane rocket family. ArianeGroup is the prime contractor for the manufacturing of the vehicles, leading a multi-country consortium of other European contractors. Ariane 5 was originally intended t ...
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SPACEWAY-2
Spaceway-2 is part of DirecTV's constellation of direct broadcast satellites. The satellite was launched via an Arianespace Ariane 5 ECA rocket from Kourou, French Guiana on 16 November 2005. Its operational position is in geosynchronous orbit above the equator at 99.2° West longitude. Spaceway-2 is a Boeing 702-model satellite with a 12-year life expectancy. It is expected to support high-definition television to DirecTV customers with its Ka-band communications payload. Although Spaceway-2 was originally built by Boeing to be used for broadband Internet access via Hughes Network Systems, it has been retrofitted to deliver HD local channels (NBC, ABC, CBS, and Fox) to numerous markets nationwide. On 19 April 2006, the satellite was delivered to DirecTV's control after successful on-orbit testing. Spaceway-2 immediately started broadcasting HD locals to DirecTV customers in eight more markets: Minneapolis, Minnesota; Sacramento and San Diego, California; Pittsburgh, Penns ...
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Proton M
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' elementary charge. Its mass is slightly less than that of a neutron and 1,836 times the mass of an electron (the proton–electron mass ratio). Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons" (particles present in atomic nuclei). One or more protons are present in the nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek for "first", and this name was given to the ...
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