In November 2020, Viasat purchased Eutelsat's share of Euro Broadband Infrastructure (EBI) for $166 million (140 million euro), giving Viasat total ownership of the KA-SAT satellite and related ground infrastructure. The purchase was completed on April 30, 2021.[4]
The spacecraft is equipped with four multi-feed deployable antennas with enhanced pointing accuracy and a high-efficiency repeater.[5] It is configured with 82 spotbeams.[2] Each spotbeam is associated with a 237 MHz wide transponder, allowing a data bit rate throughput of 475 Mbit/s per spot.
The spacecraft power is about 14 kW and the payload DC power is 11 kW. The solar array power provides up to 16 kW. The payload mass is about 1000 kg, the dry mass is about 3170 kg, the launch mass was 6100 kg. The manoeuvre lifetime in orbit is estimated to 16 years.
Broadband Internet access service
KA-SAT features a high level of frequency reuse enabling the system to achieve a total capacity of more than 90 Gbit/s.[6][7]
KA-SAT coverage over Europe and the Mediterranean Basin (different colors show frequency reuse)
The satellite operates in conjunction with ten terrestrial teleports (two of them as a backup) providing Internet gateway services, parts of the Eutelsat's Tooway service,[5] all of them linked by the "KA-SAT ring", a terrestrial telecommunication high-speed network. The service is centrally operated from Skylogic's NOC based in Torino (Italy) (Skylogic is a subsidiary of Eutelsat).
Communication systems
The data communications used on the KA-SAT satellite are transmitted to and from equipment manufactured by ViaSat:
in the Eutelsat's teleports (Internet gateways), the ViaSat "SurfBeam 2" hub system;
"SurfBeam 2" is a modified version of the DOCSIS protocol adapted by ViaSat Inc. for the satellite physical link.
Satellite television
KA-SAT carries the Irish Saorsat[8] TV service accessed using a KA-Band feedhorn LNBF, for areas in Ireland where Irish Digital Terrestrial TV (Saorview) is inaccessible.[9]
Outages
Since 24 February 2022, about the start of the 2022 Russian invasion of Ukraine, the ViaSat Internet service has suffered disruptions over some parts of Europe.[10][11]
According to Michel Friedling, Commander of the French Space Command, and Viasat itself, the disruptions were caused by a cyberattack.[12][13]
References
^ ab(PDF). International Launch Services. Archived from the original (PDF) on 2 January 2011.
^ abcJonathan Amos (26 December 2010). "Ka-Sat net-dedicated spacecraft lifts off". BBC News.
^Yang Lina (27 December 2010). . Xinhua News Agency. Archived from the original on 30 December 2010.
^Jewett, Rachel (April 30, 2021). "Viasat Completes Purchase of Euro Broadband Infrastructure".
^ abBenoit, Guillaume; Fenech, Hector; Pezzana, Stefano; Tomatis, Alessia. Ka-Band Satellite Consumer Triple-Play and Professional Video Services (Report). Retrieved December 11, 2022.
^"Eutelsat to Drive Satellite Broadband to New Frontiers with First Full Ka-Band Satellite Infrastructure" (PDF) (Press release). Eutelsat. 7 January 2008. Retrieved 29 May 2009.
^. Archived from the original on 2013-11-12. Retrieved 2013-11-12.
high, throughput, geostationary, telecommunications, satellite, owned, viasat, satellite, provides, bidirectional, broadband, internet, access, services, across, europe, small, area, middle, east, additionally, saorsat, service, ireland, positioned, joining, e. KA SAT is a high throughput geostationary telecommunications satellite owned by Viasat The satellite provides bidirectional broadband Internet access services across Europe and a small area of the Middle East 2 and additionally the Saorsat TV service to Ireland It is positioned at 9 E 3 joining the Eurobird 9A Ku band satellite KA SAT was manufactured by EADS Astrium based on the Eurostar E3000 platform with a total weight of 6 tons 1 It was launched by Proton in December 2010 2 The satellite is named after the Ka band frequency which is used on the spacecraft KA SATArtist rendering of the KA SAT satelliteMission typeCommunicationOperatorViasatCOSPAR ID2010 069ASATCAT no 37258Spacecraft propertiesBusEurostar E3000ManufacturerEADS AstriumLaunch mass6 150 kilograms 13 560 lb Start of missionLaunch date26 December 2010 2010 12 26 RocketProton M Briz MLaunch siteBaikonur 200 39ContractorILS 1 Orbital parametersReference systemGeocentricRegimeGeostationary In November 2020 Viasat purchased Eutelsat s share of Euro Broadband Infrastructure EBI for 166 million 140 million euro giving Viasat total ownership of the KA SAT satellite and related ground infrastructure The purchase was completed on April 30 2021 4 Contents 1 Spacecraft 2 Broadband Internet access service 2 1 Communication systems 3 Satellite television 4 Outages 5 References 6 External linksSpacecraft EditThe spacecraft is equipped with four multi feed deployable antennas with enhanced pointing accuracy and a high efficiency repeater 5 It is configured with 82 spotbeams 2 Each spotbeam is associated with a 237 MHz wide transponder allowing a data bit rate throughput of 475 Mbit s per spot The spacecraft power is about 14 kW and the payload DC power is 11 kW The solar array power provides up to 16 kW The payload mass is about 1000 kg the dry mass is about 3170 kg the launch mass was 6100 kg The manoeuvre lifetime in orbit is estimated to 16 years Broadband Internet access service EditKA SAT features a high level of frequency reuse enabling the system to achieve a total capacity of more than 90 Gbit s 6 7 KA SAT coverage over Europe and the Mediterranean Basin different colors show frequency reuse The satellite operates in conjunction with ten terrestrial teleports two of them as a backup providing Internet gateway services parts of the Eutelsat s Tooway service 5 all of them linked by the KA SAT ring a terrestrial telecommunication high speed network The service is centrally operated from Skylogic s NOC based in Torino Italy Skylogic is a subsidiary of Eutelsat Communication systems Edit The data communications used on the KA SAT satellite are transmitted to and from equipment manufactured by ViaSat in the Eutelsat s teleports Internet gateways the ViaSat SurfBeam 2 hub system at the customer site the ViaSat SurfBeam 2 modem as a customer premises equipment SurfBeam 2 is a modified version of the DOCSIS protocol adapted by ViaSat Inc for the satellite physical link Satellite television EditKA SAT carries the Irish Saorsat 8 TV service accessed using a KA Band feedhorn LNBF for areas in Ireland where Irish Digital Terrestrial TV Saorview is inaccessible 9 Outages EditSince 24 February 2022 about the start of the 2022 Russian invasion of Ukraine the ViaSat Internet service has suffered disruptions over some parts of Europe 10 11 According to Michel Friedling Commander of the French Space Command and Viasat itself the disruptions were caused by a cyberattack 12 13 References Edit a b KA SAT Mission Overview PDF International Launch Services Archived from the original PDF on 2 January 2011 a b c Jonathan Amos 26 December 2010 Ka Sat net dedicated spacecraft lifts off BBC News Yang Lina 27 December 2010 Russia puts European satellite into orbit Xinhua News Agency Archived from the original on 30 December 2010 Jewett Rachel April 30 2021 Viasat Completes Purchase of Euro Broadband Infrastructure a b Benoit Guillaume Fenech Hector Pezzana Stefano Tomatis Alessia Ka Band Satellite Consumer Triple Play and Professional Video Services Report Retrieved December 11 2022 Eutelsat to Drive Satellite Broadband to New Frontiers with First Full Ka Band Satellite Infrastructure PDF Press release Eutelsat 7 January 2008 Retrieved 29 May 2009 EUTELSAT KA SAT characteristics Eutelsat Archived from the original on 2013 11 12 Retrieved 2013 11 12 How to get Saorsat Official Website Satellite giant Viasat probes suspected broadband cyberattack amid Russia fears SkyNews 2022 02 28 Retrieved 2022 03 01 Satellite giant Viasat probes suspected broadband cyberattack amid Russia fears Sky News Retrieved 2022 03 01 Viasat s Ka SAT experiencing service interruptions 26 February 2022 Michel Friedling 2022 03 03 Point Presse du ministere des Armees du jeudi 3 mars 2022 Video France YouTube Hackers attack Viasat satellite network in Eastern Europe The Jerusalem Post Jerusalem Post Group 2022 03 07 Retrieved 10 March 2022 External links Edit Spaceflight portal Wikimedia Commons has media related to KA SAT Eutelsat page for KA SAT Retrieved from https en wikipedia org w index php title KA SAT amp oldid 1131917036, wikipedia, wiki, book, books, library,
