Alphasat

Alphasat I-XL, launching in 2013: this new class of
6-tonne telecommunications satellite is the result of a public–
private partnership between ESA and Inmarsat, providing high
data rate services to mobile users around the globe as well as
carrying experimental technology payloads. Its large size gives
it 12 kilowatts of power and signal processing capacity and a
longer lifetime, attractive to the telecom market.