Carries a radar altimeter and microwave scatterometer to measure the height of waves and monitor maritime wind field. The spacecraft also carries a payload to track ships and a data collection system to relay measurements from ocean buoys to forecast centers and other users.
Resolution better than one meter.
Collect data on atmospheric density and the gravity field in low Earth orbit.
"Land survey satellite. Provide data for the country?s land resources investigation, natural disaster prevention, agriculture development, water resource management, environmental survey and urban planning."
Technology verification tests for the narrow-band Internet of Things constellation.