Tag Archives: Guy Buesnel

Time is Everything With GNSS

Time is Everything With GNSSThe recent news of clock failures on both the European Union’s Galileo and IRNSS satellites (Indian Regional Navigation Satellite System) shows that launching and commissioning new satellite navigation constellations is not a simple business. The news, however, does make it worthwhile asking whether clock failures could have any implications for GNSS users — especially professional users such as in the surveying or GIS industries.

The short answer is that satellite clock failures should not directly impact any users of the Galileo or IRNSS satellites. In the event of all clocks (primary and backup) failing on a single GNSS satellite, the satellite becomes unusable. Read more…