New Year's Eve, "Mu Star People" guardian practice XX completed the fourth satellite orbit

　　Lvbing Hong Tian Chi Science and Technology Daily reporter Fu Yifei
　　"can help catch the cross years ago, the practice of satellite XX further, looking at the satellite closer distance to the target track, really happy!" Song Chao Xi'an Satellite Control Center engineers look on a large screen slowly varying curve has lamented.
　　2019 the evening of December 31, 2020, from the arrival in less than five hours, the Xi'an Satellite Control Center command and control brightly lit hall. Song Chao is implementing the fourth orbit satellite XX task practice with colleagues. They sat in front of the computer, engrossed in watching satellite state data on the big screen.
　　4 days ago, the practice of carrying the satellite XX "Fat Five" staged in Wenchang spaceport "Return of the King." Launch mission a complete success, "animal husbandry star people" are still not taking any chances. "For us, the completion launch only the first step." Senior Zhu Yongjie said. In their hearts, the precise satellite orbit from the launch to orbit about 36,000 kilometers from Earth geosynchronous orbit, fixed complete, open load, launch and complete the task "Fat Five" is equally important. "This stage is like the meticulous care of newly born babies in the delivery room. Satellite was successfully positioned this time before work best, every day is a sleepless night." Zhu Yongjie representation.
　　Computer room in orbit, engineers, Li Jinyuan and his colleagues implemented as a think tank and orbit control task even before the launch will be through a variety of methods, simulation rocket satellite to more than 10 kinds of different plans apogee. Now they do is based on the current state of satellite orbits, calculate the most fuel-efficient orbit strategy to ensure complete and accurate satellite orbit at the same time, to extend the working life of the satellite as much as possible.
　　Li Jinyuan reports, the satellite into orbit super-synchronous Earth orbit ascending node and apogee difference of more than 10 degrees, the Xi'an Satellite Control Center for the first time to implement such orbit mission. How to save fuel in the case of most of the Fengyun weighs eight tons of satellite into target orbit, it is the biggest test for them. Li Jinyuan has entered 24 hours standby. "My dorm room is only 5 minutes away, once the task requires, first time I came to deal with." He said.
　　"Shutdown command is issued, the end of the ignition, satellite normal working conditions! Comrades, Happy New Year!" 20:37, Song Chao shouted scheduling password. Burst into warm applause in the command hall, festive "warm congratulations practice XX fourth orbit satellite control a complete success," the words, covered entire big screen.
　　Celebrate very short. After a few seconds, all was quiet. On the screen appeared again all types of parametric curves satellites, we continue to test track, on a note of instructions, the analysis target parameters ...... orderly busy.
　　21:00 more basic work day come to an end. Everyone gathered in the middle of the hall posed for pictures, then gradually from work. There are some people entered the conference room, the follow-up operation on orbit will be implemented in consultation launched to determine the orbit control strategy. When their work is finished off the New Year bell sounded less than an hour remaining.
　　Xi'an Satellite Control Center Technical Director Li Jiancheng introduction, subsequent practice XX orbit satellite operation will be carried out three times, and after a series of in-orbit tests, the spacecraft will eventually be delivered before the Spring Festival Center long-term management department. In this process, "Mu Star" will continue to optimize the control calculation program plans to ensure the accuracy of satellite into orbit work.