17 June 2021
Li Hengnian, Director of China's State Key Laboratory of Astronautic Dynamics, gives an insight into the work of the Xi'an Satellite Control Centre. He explains which satellites are operated from Xi'an and which upgrades were done for the Tianwen 1 mission. To monitor the probe's operations, especially its trajectory on the way to Mars, an AI-based Precise Orbit Determination System was built for the 1st time. Li Hengnian was the Chief Developer. He also helped to recover a Beidou satellite which suddenly lost power after it entered orbit.
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