[Not to be confused with Sirius Satellite Radio]
The Sirius satellites is a constellation of communications satellites operated at 5°E in geostationary orbit by SES, owner and operator of the Astra satellites.
They broadcast digital satellite television to the countries of Scandinavia, Baltic states, eastern Europe and Africa, including the Viasat pay TV system, along with several pay TV packages for eastern Europe, the TopTV package for Africa, a number of Ukrainian channels and the national Latvian and Lithuanian channel service free-to-air.
The Sirius satellites are not the satellites used for the American Sirius Satellite Radio service, whose satellites are named Radiosat.