关于这张图
This illustration depicts the Surface Water and Ocean Topography (SWOT) satellite with solar arrays fully deployed. Measuring 48.8 feet (14.9 meters) in length with an area of 335 square feet (31 square meters), the two arrays will remain pointed at the Sun via small motors to provide 8 kilowatts of power; the spacecraft has a 1.5-kilowatt total power demand. The scientific heart of the SWOT satellite is the Ka-band Radar Interferometer (KaRIn) instrument, which will measure the height of water in Earth's lakes, rivers, reservoirs, and ocean. To do that, KaRIn will transmit radar pulses to Ea…
