At 11:47 on August 3, FY-3F was successfully launched from Jiuquan Satellite Launch Center by taking the Long March 4C carrier rocket. The load configuration and performance indicators of F satellite have reached the international advanced level, and will take over the on orbit business of FY-3 C satellite, which has been "in service" for nearly 10 years. What are the highlights of Star F? How will the timeliness and accuracy of weather forecast be improved? People's Daily Online invited Hu Xiuqing, the chief designer of the ground system of FY-3 polar orbiting star, to interpret this.