What is Galileo?

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Galileo is Europe's Global Satellite Navigation System. It provides a range of state-of-the-art positioning, navigation and timing services to users worldwide. Galileo is fully interoperable with GPS, but will offer more accurate and reliable positioning for end users.

At the moment, the Galileo constellation consists of 26 satellites, all of which are already in orbit. The full constellation foresees a total of 30 satellites and is expected to be completed by 2020.

Satellite positioning has become a vital part of our daily lives and is a key for farming, science, precise timing and emergency response. We use it on our phones, cars, planes, trains, ships and thousands of other applications. 

Galileo Initial Services are managed by the European GNSS Agency (GSA). The overall Galileo programme is run by the European Commission, which has handed over the responsibility for the deployment of the system and technical support to operational tasks to the European Space Agency (ESA).


About Cetra Base

Cetra Base is an engineering company based in Madrid (Spain) providing consultancy support in aerospace sector.

We have expertise in different fields such as Galileo Ground Segment, Ground Stations, Galileo PRS, etc. 



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Madrid (Spain)
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