TAG: IOV

Galileo Achieves In-Orbit Validation

February 10, 2014By
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The in-orbit validation of Galileo has been achieved, according to the European Space Agency (ESA). Europe now has the operational nucleus of its own satellite navigation constellation in place — the world’s first civil-owned and operated satnav system. Four is the minimum number of satellites needed to perform navigation fixes. In 2011 and 2012, the first four satellites were launched... read more

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Galileo and Compass: A Tale of Also-Runnings

December 19, 2012By

Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today offer some signals and some satellites to GNSS users — as long as those users are researchers. Galileo has more going for it in the way of signals, while Compass holds an edge in the number of satellites. Without an interface control... read more