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European Geostationary Navigation Overlay System
The European Geostationary Navigation Overlay Service (EGNOS) is a satellite-based augmentation system (SBAS) developed by the European Space Agency and EUROCONTROL on behalf of the European Commission. Currently, it supplements the GPS by reporting on the reliability and accuracy of their positioning data and sending out corrections. The system will supplement Galileo in a future version. EGNOS consists of 40 Ranging Integrity Monitoring Stations, 2 Mission Control Centres, 6 Navigation Land Earth Stations, the EGNOS Wide Area Network (EWAN), and 3 geostationary satellites. Ground stations determine accuracy data of the satellite navigation systems and transfer it to the geostationary satellites; users may freely obtain this data from those satellites using an EGNOS-enabled receiver, or over the Internet. One main use of the system is in aviation. According to specifications, horizontal position accuracy when using EGNOS-provided corrections should be better than seven metres. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EGNOS Logo
The European Geostationary Navigation Overlay Service (EGNOS) is a satellite-based augmentation system (SBAS) developed by the European Space Agency and EUROCONTROL on behalf of the European Commission. Currently, it supplements the GPS by reporting on the reliability and accuracy of their positioning data and sending out corrections. The system will supplement Galileo (satellite navigation), Galileo in a future version. EGNOS consists of 40 Ranging Integrity Monitoring Stations, 2 Mission Control Centres, 6 Navigation Land Earth Stations, the EGNOS Wide Area Network (EWAN), and 3 geostationary satellites. Ground stations determine accuracy data of the satellite navigation systems and transfer it to the geostationary satellites; users may freely obtain this data from those satellites using an EGNOS-enabled receiver, or over the Internet. One main use of the system is in aviation. According to specifications, horizontal position accuracy when using EGNOS-provided corrections shou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and '' depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo have, respectively, the largest elevation and the largest geocentric distance. Aviation In aviation the term elevation or aerodrome elevation is defined by the ICAO as the highest point of the landing area. It is often measured in feet and can be found in approach charts of the aerodrome. It is n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latitude
In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pole, with 0° at the Equator. Lines of constant latitude, or ''parallels'', run east–west as circles parallel to the equator. Latitude and ''longitude'' are used together as a coordinate pair to specify a location on the surface of the Earth. On its own, the term "latitude" normally refers to the ''geodetic latitude'' as defined below. Briefly, the geodetic latitude of a point is the angle formed between the vector perpendicular (or ''normal'') to the ellipsoidal surface from the point, and the plane of the equator. Background Two levels of abstraction are employed in the definitions of latitude and longitude. In the first step the physical surface is modeled by the geoid, a surface which approximates the mean sea level over the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WAAS
The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentially, WAAS is intended to enable aircraft to rely on GPS for all phases of flight, including precision approaches to any airport within its coverage area.Federal Aviation Administration (FAAFAQ for WAAS/ref> It may be further enhanced with the Local Area Augmentation System (LAAS) also known by the preferred ICAO term Ground-Based Augmentation System (GBAS) in critical areas. WAAS uses a network of ground-based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites' signals in the western hemisphere. Measurements from the reference stations are routed to master stations, which queue the received Deviation Correction (DC) and send the correction messages to geostationary WAAS satellites in a timely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutelsat 5 West B
Eutelsat 5 West B is a geostationary communications satellite. It is owned by European satellite communications company Eutelsat. It launched on October 9, 2019, at 10:17 UTC on a Proton-M rocket from Baikonur Cosmodrome in Kazakhstan. The satellite was built by Northrop Grumman and Airbus Defence and Space and has an expected operational life of more than 15 years. Situated at 5° west, it broadcasts satellite television Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location. The signals are received via an outdoor parabolic antenna comm ..., radio and other digital data. It was scheduled to enter operational service at the end of 2019, but deployment difficulties delayed service. Problems On 24 October 2019 Eutelsat released a statement saying the company was investigating an incident on one of the bird's two solar arrays. On 17 January 2020 Eutelsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astra 5B
Astra 5B is one of the Astra communications satellites owned and operated by SES. It was launched as SES' 56th satellite in March 2014, to the newest of the Astra orbital positions for direct-to-home (DTH) satellite television, at 31.5° East for DTH, DTT and cable use in Eastern Europe,. The satellite will replace the Astra 1G satellite currently at 31.5° East, which is itself filling in at that position after the loss of the Astra 5A satellite (originally called Sirius 2) in 2009, Astra 2C was first used at 31.5° East to replace Astra 5A, with Astra 1G positioned there in 2010. Astra 5B is the third satellite to be launched of four ordered together by SES from Astrium (now Airbus Defence and Space) in 2009.''SES Selects Astrium To Build Four Direct Broadc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beyond Frontiers
''Beyond Frontiers'' is the third book in a series from satellite owner and operator Société Européenne des Satellites describing the past, current and future of the development of satellite broadcasting as well as the current business of the company and its strategy. The book was published in 2016, following predecessors ''High Above'' (2010) which detailed the history of the company and of satellite broadcasting, and ''Even Higher'' (2012) which looked at the future of broadcasting. It is a large "coffee table" style book (32 x 24 cm) of 113 pages with hundreds of photographs. Content ''Beyond Frontiers'' tells the story of SES' technological and commercial innovations and how these are applied in the industry today, providing an in-depth look at the current status of satellite television and data broadcasting from the perspective of SES. In the first part, ''The Race to Space, and Innovating Technology'', the author reviews the technological breakthroughs that are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SES S
SES, S.E.S., Ses and similar variants can refere to: Business and economics * Socioeconomic status * Scottish Economic Society, a learned society in Scotland * SES, callsign of the TV station SES/RTS (Mount Gambier, South Australia) * SES S.A. SES S.A. is a Luxembourgish-French satellite telecommunications network provider supplying video and data connectivity worldwide to broadcasters, content and internet service providers, mobile and fixed network operators, governments and insti ..., a satellite owner and operator * Single Economic Space or Eurasian Economic Space, a project of economical integration of five post-Soviet states: Belarus, Kazakhstan, Russia, Armenia, and Kyrgyzstan * Single European Sky * Stock Exchange of Singapore * Subud Enterprise Services Science and technology * SES (universities), Science and Engineering South, a consortium of 6 research-intensive public universities in the Southeast of England, UK * Sedimentation enhancing strategy, Sedimentati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SES-5
SES-5 (also known as Astra 4B and Sirius 5) is a commercial geostationary communication satellite operated by SES S.A. It was launched on 9 July 2012. The launch was arranged by International Launch Services (ILS). History In October 2008, SES Sirius AB of Sweden (then 90% owned by SES and prior to 2003 called Nordic Satellite AB) ordered the Sirius 5 satellite from Space Systems/Loral. Following full acquisition by SES in 2010, SES Sirius was renamed SES Astra (a subsidiary of SES) and the satellite renamed Astra 4B. In 2011, SES Astra was merged back into SES and the satellite renamed SES-5. Broadband TV News. 2 May 2011. Accessed 27 May 2022 Satellite description It was constructed by |
