Japanese Team Demonstrates GPS Navigation In GEO

Equipped with a high-bandwidth laser communications payload, the JDRS-1 optical data relay satellite is also testing GPS navigation in GEO.
Credit: JAXA
Navigation satellites broadcast their signals toward the Earth, but spacecraft in low Earth orbit are also able to take advantage of the signals to improve localization and enable advanced orbital capabilities. But with most global navigation satellite systems (GNSS) using medium Earth orbit, it is...

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