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As the first satellite of the China national geophysical field observation series of satellite missions,the China Seismo-Electromagnetic Satellite (CSES) was designed upon an optimized CAST2000 platform for a sun synchronous orbit.Onboard CSES,there are total eight types of scientific payloads including the Search-coil Magnetometer,Electric Field Detector,High Precision Magnetometer,GNSS Occupation Receiver,Plasma Analyzer,Langmuir Probe,Energetic Particle Detector Package,and a Three-band Transmitter to individually acquire the global electromagnetic field,electromagnetic waves,ionospheric plasma parameters as well as energetic particles.Up to now,CSES has been operating normally in orbit for 2 years.By using the various sensor data acquired by CSES,we have achieved scientific research in the areas of the global geomagnetic field modeling,space weather,earthquake event analysis,the Lithosphere-Atmosphere-Ionosphere coupling mechanism and so on.