A Long March 4C rocket carrying the second group of China's Yaogan 31 remote sensing satellites is launched from Jiuquan Satellite Launch Center in Northwest China's Gansu province, Jan 29, 2021. [Photo by Wang Jiangbo/for chinadaily.com.cn] BEIJING - China's satellite application system has made great progress in 2020, with more than 300 satellites in orbit for various applications, according to a recent report released by the China Aerospace Science and Technology Corporation. Among them are Beidou navigation satellites, remote sensing satellites for meteorological and marine monitoring, and communication satellites. China started the construction of a high-throughput broadband satellite communication system in 2020, with the APSTAR-6D telecommunication satellite launched in July. Based on satellite communication capability, China provides communication services for users on the ground and in the sea and air. The total number of direct broadcasting satellite service users has exceeded 145 million. With the improvement of space infrastructure, aerospace enterprises have promoted the integration of aerospace and other industries through satellite operations and data mining, according to the report.