China Launches Shiyan-31 Test Satellite on 599th Long March Mission
China launched its Shiyan-31 test satellite aboard a Long March-2D, the 599th mission, to test new optical imaging technologies.
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Chinese mainland Launches Shiyan-31 Optical Imaging Test Satellite
The Chinese mainland launched the Shiyan-31 test satellite on October 13, using a Long March-2D rocket to test new optical imaging tech for sharper Earth observations.