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- Astra_4A abstract "Astra 4A is one of the Astra communications satellites owned and operated by SES at the Astra 5°E orbital slot providing digital television and radio broadcasts, data, and interactive services to Nordic countries, eastern Europe and sub-Saharan Africa in the 11.70 GHz-12.75 GHz range of the Ku band and 18.8 GHz-21.75 GHz range of the Ka band.The satellite was launched in November 2007 as Sirius 4 by SES Sirius. At that time, SES owned a 75% shareholding in SES Sirius, which was increased to 90% in 2008 and to 100% in March 2010. In June 2010, the affiliate company was renamed SES Astra (then a subsidiary company of SES) and the Sirius 4 satellite was renamed Astra 4A.Astra 4A provides three Ku band broadcast beams - the Nordic beam to Denmark, Norway, Sweden and Finland, the European beam to Eastern European and Baltic countries including Belarus, Bulgaria, Estonia, Latvia, Lithuania, Romania, Russia and Ukraine, and the African beam to sub-Saharan Africa.Reception is possible on dishes as small as 60 cm from all three beams, with reception from the European beam across Europe and from the African beam across sub-Saharan across Africa with dishes of 90 cm-120 cm.The satellite also carries a dedicated payload of two transponders for Ka band services, for applications such as interactive and contribution services. Both uplink and downlink within the African footprint are available, and also inter-connectivity between Africa and Europe so broadcasting out of Europe is available without the need for expensive fibre ground links.Five of these African beam transponders are contracted with ETV and Globecast having signed one transponder each and three transponders signed by On Digital Media for the South African TopTV network.Co-located with Astra 4A at 5°E is the SES-5 satellite. Launched in July 2012, this satellite provides a similar European and African coverage and was originally named Sirius 5, but renamed to Astra 4B in 2010 and then to SES-5 in 2011.".
- Astra_4A wikiPageExternalLink www.onastra.com.
- Astra_4A wikiPageExternalLink index.php.
- Astra_4A wikiPageExternalLink index.php.
- Astra_4A wikiPageExternalLink footprints?beam=5679.
- Astra_4A wikiPageExternalLink footprints?beam=6341.
- Astra_4A wikiPageExternalLink footprints?beam=6342.
- Astra_4A wikiPageExternalLink www.ses.com.
- Astra_4A wikiPageID "19078000".
- Astra_4A wikiPageRevisionID "568703304".
- Astra_4A apsis "gee".
- Astra_4A hasPhotoCollection Astra_4A.
- Astra_4A launchContractor International_Launch_Services.
- Astra_4A launchDate "2007-11-18".
- Astra_4A launchRocket Briz-M.
- Astra_4A launchRocket Proton-M.
- Astra_4A launchSite Baikonur_Cosmodrome.
- Astra_4A launchSite Baikonur_Cosmodrome_Site_200.
- Astra_4A manufacturer Lockheed_Martin.
- Astra_4A missionDuration "4.73364E8".
- Astra_4A name "Astra 4A".
- Astra_4A orbitLongitude "5".
- Astra_4A orbitReference Geocentric_orbit.
- Astra_4A orbitRegime Geostationary_orbit.
- Astra_4A power "8100".
- Astra_4A spacecraftBus Lockheed_Martin_A2100.
- Astra_4A transBand "2".
- Astra_4A transBand "52".
- Astra_4A transBandwidth "125250".
- Astra_4A transEirp "50".
- Astra_4A transTwta "118".
- Astra_4A subject Category:2007_in_Luxembourg.
- Astra_4A subject Category:2007_in_spaceflight.
- Astra_4A subject Category:Astra_satellites.
- Astra_4A subject Category:Communications_satellites_in_geostationary_orbit.
- Astra_4A type ArtificialSatellite.
- Astra_4A type Satellite.
- Astra_4A type Thing.
- Astra_4A comment "Astra 4A is one of the Astra communications satellites owned and operated by SES at the Astra 5°E orbital slot providing digital television and radio broadcasts, data, and interactive services to Nordic countries, eastern Europe and sub-Saharan Africa in the 11.70 GHz-12.75 GHz range of the Ku band and 18.8 GHz-21.75 GHz range of the Ka band.The satellite was launched in November 2007 as Sirius 4 by SES Sirius.".
- Astra_4A label "Astra 4A".
- Astra_4A label "Astra 4A".
- Astra_4A label "Astra 4A".
- Astra_4A label "Astra 4A".
- Astra_4A label "SIRIUS 4".
- Astra_4A label "Астра 4А".
- Astra_4A sameAs Astra_4A.
- Astra_4A sameAs SIRIUS_4.
- Astra_4A sameAs Astra_4A.
- Astra_4A sameAs Astra_4A.
- Astra_4A sameAs m.04jhzs2.
- Astra_4A sameAs Q750294.
- Astra_4A sameAs Q750294.
- Astra_4A wasDerivedFrom Astra_4A?oldid=568703304.
- Astra_4A homepage www.onastra.com.
- Astra_4A isPrimaryTopicOf Astra_4A.