PARIS — The European Space Agency (ESA) in November will ask its 22 member governments to finance a $100-million constellation of 6-12 proof-of-concept satellites to launch in 2026 to test multiple radio frequencies for positioning, navigation and timing services from low Earth orbit.
If the results are as good as hoped, the agency would then seek support for a constellation of around 200 satellites, also in low Earth orbit, to provide frequency diversity to the L-band Galileo navigation constellation in medium-Earth orbit of 23 . . .
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