PARIS — China’s Galaxy Space said its 200-kilogram proof-of-concept satellite launched in January has demonstrated throughput of more than 1 gigabit per second for each of its 16 Ka-band user beams.

The satellite, called Galaxy-1 or Yinhe-1, was launched aboard an Expace Kuaizhou-1A rocket mobile platform, operating from the Jiuquan Satellite Launch Center in northwest China, into a 660-kilometer orbit. It is intended as the first of several hundred satellites for a low-Earth-orbit broadband constellation.

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