Inmarsat, which provides mobile satellite telecommunications, has successfully launched Alphasat, the largest satellite, designated I-4A F4. Alphasat is “one of the most technically advanced telecommunications satellites ever constructed for civilian applications,” according to the company. It was launched from the Guiana Space Centre in Kourou, French Guiana yesterday. Inmarsat has a number of L-band satellites, which provide global broadband connectivity for government and commercial customers, and supplies connectivity to the aviation industry and its passengers. Described as the “A380 of space”, Alphasat has so far cost Inmarsat $350m in investment.