my country’s first electromagnetic monitoring test satellite "Zhang Heng No. 1" was launched at the Jiuquan Satellite Launch Center, marking that my country has become one of the few countries in the world that has high-precision geophysical field detection satellites operating in orbit. This scientific experiment satellite named after Zhang Heng will carry out the analysis of the electromagnetic information of the world's 7th magnitude earthquake and China's 6th magnitude earthquake on a sun-synchronous orbit with an altitude of about 500 kilometers, providing information for earthquake mechanism research, space environment monitoring and earth system scientific research. ...