Navigation satellites are typically located in medium Earth orbit, but bringing them closer could result in greater accuracy—and heightened space traffic.
Currently, Global Navigation Satellite Systems are typically placed in medium Earth orbits about 6,300 to 12,500 miles above the surface and they send location data to smartphones, cars, and other mapping devices. But ESA is planning on building a constellation of navigation satellites, or satnavs, just a few hundred miles high, testing a multi-layer satnav system to supplement its already-existing Galileo satellites,“Up until now the classical solution of GNSS such as Galileo...
ESA will perform an in-orbit demonstration of the low Earth orbiting satnavs once they’re in place. By being closer to Earth, the satellites will have less distance to cover when delivering their signals. What’s more, the signals will be more powerful and reach places not otherwise covered by current satellites as the result of excessive interference.
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