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Astra 2A is one of the Astra
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. Com ...
s owned by Société Européenne des Satellites. Launched in 1998 into the 28.2° East orbital position, half its expected end-of-life capacity of 28 transponders were pre-booked by
BSkyB Sky UK Limited is a British broadcaster and telecommunications company that provides television and broadband Internet services, fixed line and mobile telephone services to consumers and businesses in the United Kingdom. It is the UK's largest p ...
, who utilised it to launch their new Sky Digital service. In March 2015, the satellite has been deactivated and relocated to 113.5° East.


History

The satellite suffered pre-launch technical issues with its apogee motors and was moved to a launch by the
Proton-K The Proton-K, also designated Proton 8K82K after its GRAU index, 8K82K, was a Russian, previously Soviet, carrier rocket derived from the earlier Proton. It was built by Khrunichev, and launched from sites 81 and 200 at the Baikonur Cosmodrome in Ka ...
/ DM-03 rather than the
Ariane 5 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 in French Guiana. It has been used to deliver payloads into geostat ...
, as the Proton can inject directly in
geostationary orbit A geostationary orbit, also referred to as a geosynchronous equatorial orbit''Geostationary orbit'' and ''Geosynchronous (equatorial) orbit'' are used somewhat interchangeably in sources. (GEO), is a circular geosynchronous orbit above Earth' ...
(GEO). When positioned at 28.2 East, it joined DFS Kopernikus-1, which served mainly
Eastern Europe Eastern Europe is the region of the European continent between Western Europe and Asia. There is no consistent definition of the precise area it covers, partly because the term has a wide range of geopolitical, geographical, ethnic, cultural, and s ...
. The satellite was the first of Astra's craft to never carry analogue television services (with the exception of a solitary test card in 1999 ), and as of 2006, carried standard definition digital television, digital radio, and high-definition digital television, as well as Sky Interactive streams and the
AVC Broadband AVC may refer to: Organizations * Asian Volleyball Confederation, the continental governing body for the sport of volleyball in Asia * Advanced Video Communications, owner of Stickam * ¡Alfaro Vive, Carajo!, a defunct left-wing group in Ecuador * ...
and Silvermead satellite Internet services. Two beams "2A North" and "2A South" transmit on horizontal and vertical polarisation. The South beam covers almost all of Europe, with the North beam covering only Northern Europe at a high power. In March 2015, two years beyond Astra 2A's projected lifespan, and following the launches of
Astra 2E Astra 2E is one of the Astra communications satellites owned and operated by SES S.A., launched to the Astra 28.2°E orbital position on 30 September 2013 after a 10-week delay caused by launcher problems. The satellite provides free-to-air and ...
in 2013,
Astra 2F Astra 2F is one of the Astra communications satellites owned and operated by SES S.A., launched in September 2012 to the Astra 28.2°E orbital position. The satellite provides free-to-air and encrypted direct-to-home (DTH) digital television and ...
in 2012, and
Astra 2G Astra 2G is one of the Astra communications satellites owned and operated by SES, launched to the Astra 28.2°E orbital position on 27 December 2014, at 21:37:49 UTC from Baikonur Cosmodrome. Astra 2G is positioned at 28.5° East (part of the As ...
in 2014 to 28.2° East, all remaining traffic was transferred from Astra 2A to the newer satellites. From 25 March 2015, Astra 2A remained at 28.2° East, inactive, and was expected to be moved to Astra 23.5°E to operate as a backup satellite to
Astra 3B Astra 3B is one of the Astra communications satellites owned and operated by SES, launched in 2010 to the Astra 23.5°E orbital position providing digital television and radio for direct-to-home (DTH), and the AstraConnect two-way satellite broad ...
but in the summer of 2016 it was instead moved to 113.5°E. In July 2018, Astra 2A started moving west at approximately 0.6°/day to arrive at its new position of 100° East in August 2018. In May 2020, Astra 2A started moving west at approx 0.8°/day.REAL TIME SATELLITE TRACKING AND PREDICTIONS
Accessed May 30, 2020


See also

*
Astra 2E Astra 2E is one of the Astra communications satellites owned and operated by SES S.A., launched to the Astra 28.2°E orbital position on 30 September 2013 after a 10-week delay caused by launcher problems. The satellite provides free-to-air and ...
*
Astra 2F Astra 2F is one of the Astra communications satellites owned and operated by SES S.A., launched in September 2012 to the Astra 28.2°E orbital position. The satellite provides free-to-air and encrypted direct-to-home (DTH) digital television and ...
*
Astra 2G Astra 2G is one of the Astra communications satellites owned and operated by SES, launched to the Astra 28.2°E orbital position on 27 December 2014, at 21:37:49 UTC from Baikonur Cosmodrome. Astra 2G is positioned at 28.5° East (part of the As ...
*
Astra 2B Astra 2B is one of the Astra communications satellites owned and operated by Société Européenne des Satellites. Launched in September 2000 to join Astra 2A at the Astra 28.2°E orbital position providing digital television and radio broadcast ...
*
Astra 2C Astra 2C is one of the Astra communications satellites owned and operated by Société Eurpéenne des Satellites. Designed to join Astra 2A and Astra 2B at the Astra 28.2°E orbital position providing digital television and radio broadcast servic ...
*
Astra 2D Astra 2D is one of the Astra communications satellites owned and operated by Société Européenne des Satellites (SES), and located at 28.2° East in the geostationary orbit till June 2015. It is a Hughes Space and Communications HS-376HP satell ...
* Astra 28.2°E main lifetime orbital position


References


External links

* *
SES guide to receiving Astra satellites

SES guide to channels broadcasting on Astra satellites

OnAstra
- Official consumers/viewers' site
SES
- Official trade/industry site {{Orbital launches in 1998 Astra satellites Communications satellites in geostationary orbit Satellites using the BSS-601 bus Spacecraft launched in 1998 1998 in Luxembourg Satellites of Luxembourg