Biggest Chinese communications satellite built. Huge capacity.
"One of the payloads is NASA's DSAC (Deep Space Atomic Clock), a technology demonstration mission to validate a miniaturized, ultra-precise mercury-ion atomic clock that is 100 times more stable than today?s best navigation clocks."
Second from the Planetary Society.
Research technologies needed to significantly advance Department of Defense (DoD) capabilities to operate spacecraft in the harsh radiation environment of MEO (Medium-Earth Orbits).
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