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For as yet unexplained reasons, Europe’s entire Galileo constellation of GPS-type satellites has been out-of-operation for the past four days.
The European GNSS Agency (GSA), the organization in charge of Galileo, has not published any information in regards to the root of the outage, which began four days ago, on Thursday, July 11. On that day, the GSA published an advisory on its website alerting companies and government agencies employing the Galileo system that satellite signals have degraded and they “may not be available nor meet the minimum performance levels.” The agency warned that the Galileo system “should be employed at users’ own risk.”
The GSA published a more dire warning on Saturday, July 13, when it said that Galileo was experiencing a full-service outage and that “signals are not to be used.”
I cannot imagine any technical problem on the satellites themselves that would cause them all to fail at the same time. Instead, this appears to be some form of sabotage, a variation of the recent Russian tactic of disrupting GPS in areas they consider sensitive.
It also may explain the announcement yesterday by French president Macron that France is going to create its own space command.