Tags: Artificialsatellite, Satellite.
Inmarsat-4A F4 also known as Alphasat and Inmarsat-XL is a British geostationary communications satellite operated by Inmarsat in partnership with the European Space Agency. Launched in 2013 it is used to provide mobile communications to Africa and parts of Europe and Asia.Inmarsat-4A F4 was constructed by EADS Astrium and Thales Alenia Space based around the Alphabus satellite bus.