The CSES-02 (China Seismo-Electromagnetic Satellite-02) satellite, the second in the CSES series, has been successfully launched as a result of a collaboration between the China National Space Administration (CNSA) and the Italian Space Agency (ASI). A substantial Italian scientific component is participating in the mission as part of the Limadou collaboration, a network coordinated by ASI with the National Institute for Nuclear Physics (INFN), the National Institute for Astrophysics (INAF), and the National Institute of Geophysics and Volcanology (INGV), the National Research Council (CNR – IFAC), and the Italian universities of L'Aquila, Bologna, Rome Tor Vergata, Turin, Trento, and the International Telematic University UniNettuno. CSES-02 will work in tandem with its twin satellite, CSES-01, which was launched in 2018 and is still active. The mission's goal is to observe and analyze ionospheric and magnetospheric phenomena associated with extreme geophysical events such as earthquakes, as well as atmospheric and space weather phenomena including geomagnetic storms and high-energy solar particles. The Italian involvement in the mission, lead by ASI, places our country at the forefront of technological and scientific advancement. Two of the eleven instruments on board the satellite were designed and constructed in Italy: HEPD-02 (High-Energy Particle Detector), a high-energy particle detector developed by INFN in collaboration with CNR and the academic world, and EFD-02 (Electric Field Detector), built jointly by INFN and INAF for the measurement of the electric field. Both instruments were redesigned to enhance their performance and the scientific information contained in the data. Thanks to these instruments, CSES-02 will be able to investigate new frontiers in the comprehension of physical phenomena that occur between the lithosphere, atmosphere, and ionosphere, with a particular focus on the search for potential space-time correlations with intense seismic events. The mission exemplifies how international scientific cooperation can lead to technological advancement and the ability to address critical issues such as environmental monitoring, natural hazard forecasting, and understanding Earth-Space interaction through the collaborative efforts of agencies, research institutions, and universities.
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