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Hongyun - Constellation communications system

In December 2019, state-owned China Aerospace Science and Industry Corporation (CASIC) launched their first experimental Hongyun (rainbow cloud) Project satellite and a week later China Aerospace Science and Technology Corporation (CASC) launched their first experimental Hongyan (wild goose) Project satellite.

The demonstration system for China's Hongyun Project, a low-orbit broadband communication satellite system, would become operational at the beginning of 2020, making substantial progress toward the eventual goal of providing internet connectivity to users around the world, developers said 19 November 2019. Liu Shiquan, deputy general manager of space giant China Aerospace Science and Industry Corporation (CASIC) announced that testing of the first Hongyun Project satellite has been successfully completed. Li was addressing the ongoing 5th China International Commercial Aerospace Forum in Wuhan, Central China's Hubei Province.

The project, also known as the H-cloud, was developed by CASIC. The first tech-experimental satellite for the project was launched on December 22, 2018 from the Jiuquan Satellite Launch Center in Northwest China's Gansu Province. CASIC said that all satellite performance and function tests have been completed. The testing included under different weather conditions, and for different business scenarios such as website browsing, video chats and high-resolution streaming services. During the tests, there was no frame loss or buffering, and all functions and indicators met the design requirements, it said.

By the beginning of 2020, users across China would be able access the demonstration system of the Hongyun Project, and they would be able to take advantage of what it described as "Hongyun speed," CASIC said. The Hongyun Project, which was announced in 2017, is expected to launch four more satellites to gain preliminary experience by 2020.

CASIC expected to have a total of 156 satellites in operation by the middle of the 14th Five-Year Plan (2021-25). The project can offer communication and internet services for China and less-developed countries with reduced latency. Meanwhile, the project can also benefit emergency communication, sensor data collection and remote control of unmanned equipment, CASIC said in 2017.

China Aerospace Science and Industry planned to launch 156 satellites. The satellites will be networked in orbits 1,000 kilometers above the ground to build a space-borne broadband global mobile internet network. The first test star was launched on December 22, 2018.

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