Arianespace launches four new Galileo satellites for ESA


An Arianespace-operated Ariane 5 rocket has launched four more satellites under the European Space Agency’s (ESA) Galileo civil global satellite navigation system.

Launched from Europe’s spaceport in French Guiana, the satellites have extended Europe’s ability in satellite-based navigation.

Around 3h 35min after lift-off, the first pair was released, and the second pair separated 20min later.

Over the next few days, engineers on-ground will manoeuvre the satellites to reach their final orbits, with plans to make them join the constellation in around six months of time.

A total of 14 satellites under the Galileo programme were initially launched using the Soyuz Fregat rocket.

ESA Galileo programme and navigation-related activities director Paul Verhoef said: “Now that we can rely on the powerful Ariane 5, we can anticipate the quicker completion of Galileo deployment, permitting the system to enter full operation.”

"We can anticipate the quicker completion of Galileo deployment, permitting the system to enter full operation.”

Co-funded by ESA and the European Commission (EC), the Galileo programme is expected to begin its initial services by the end of this year.

Two more Ariane 5 missions of the programme are also planned to be launched over the next two years.

Galileo’s full system of 24 satellites and other spare satellites are expected to be in place by 2020.

Once operational, Galileo will enable global operations to know their precise position in time and space.

European Global Navigation Satellite System Agency (GSA) is responsible for the uptake and security of Galileo, and will operate the programme from next year.


Image: Europe’s next four Galileo satellites lifted off from Europe’s Spaceport in French Guiana atop an Ariane 5 launcher. Photo: courtesy of ESA-S Corvaja.