WASHINGTON — The European Space Agency (ESA) committed 233 million euros ($253.6 million) to build one satellite with millimeter-level accuracy and 0.1 millimeter per year stability for the International Terrestrial Reference Frame (ITRF) as well as two five-satellite constellations to test a new orbit and new radio frequencies for a future low-orbit positioning, navigation and timing (LEO-PNT) service.
The contracts followed strong support for what ESA calls its Genesis and LEO-PNT program, which received overwhelming support from its governments at the . . .
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