European "Galileo" satellite positioning navigation system officially launched or rescue GPS

According to French media, on December 15th, local time, the European "Galileo" satellite positioning navigation system was officially opened in Brussels, Belgium.

According to the EU, the Galileo system is the most accurate positioning system in the world. It is a major project completed in Europe. It is created by everyone and cannot be done independently by any European country.

It is reported that the Galileo system will provide free services to the world, but it needs to be equipped with a compatible chip-based smartphone and navigation device, and because only 18 satellites are currently working in orbit, signal instability may occur in the early stage, and the US GPS will be used. The system is a supplement.

The Galileo System Project was initiated in 1999 by German and French, and was built by the European Space Agency (ESA) and the European Navigation Satellite System Administration (GSA). The first experimental satellite GIOVE-A was launched on December 28, 2005, the first. The official satellite was launched on August 21, 2011. All 30 satellites are scheduled to be completed by 2020, including 24 working satellites and 6 backup satellites.

According to the plan, the Galileo system currently provides only early services, initial work services in 2017-2018, and full working capacity in 2019.

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