[Commentary] On June 23, after the last Beidou navigation satellite was launched, Pan Yuqian, the chief designer of the Beidou-3 satellite of the Fifth Academy of the Aerospace Science and Technology Group, wrote in his circle of friends, "Successful conclusion", followed by continuous Several "Come on" gestures. Regarding these "refueling" gestures, Pan Yuqian said in an interview recently that he hopes the Beidou team to continue to refuel and the heavenly Beidou satellite to continue to refuel and jointly complete the satellite navigation business belonging to the Chinese.
The Chinese satellite navigation business started in a difficult and difficult environment. From the idea proposed in the 1980s to the official launch of the Beidou-1 construction in 1994, Pan Yuqian said that in the period of "from nothing", it was the generation of astronauts who worked hard to support the start of the Beidou project.
[Same period] Pan Yuqian, Chief Designer of Beidou-3 Satellite, Fifth Academy of Aerospace Science and Technology Group
(Listening to old experts) The circuit diagrams are all drawn on paper. We all have software drawings now. At that time, they were all built out of a device and a component, including how to connect the cables. Root welding, one by one, one by one wrapped, one by one, including the system test method is a little bit out, really there is such a process from scratch, it is very admirable and admirable.
[Explanation] After unremitting efforts, Beidou-1 was successfully built, which also enabled China's satellite navigation system to leap from scratch. After the completion of the Beidou No. 2 system, it achieved positioning, navigation and timing services for most parts of the Asia-Pacific region.
Now, with the final launch of the last Beidou navigation satellite, it is announced that the China Beidou satellite navigation system, which has been built for many years, has been officially completed.
[Same period] Pan Yuqian, Chief Designer of Beidou-3 Satellite, Fifth Academy of Aerospace Science and Technology Group
It represents the complete completion of the deployment of the Beidou Global Network, the completion of the comprehensive construction of the Beidou No. 3 system, and the last satellite in the third step of the country's "three steps." It has great significance for the country and the people to launch, and it can provide global, all-weather, all-day navigation, positioning and timing services.
[Explanation] After more than 30 years of practical exploration, Beidou system construction has gone through the development process of "three steps".
In this process, Beidou satellite navigation technology has been continuously improved, and the scope of user services has continued to expand, while the hard-working quality of several generations of Beidou people has continued.
[Same period] Zhang Xu, the chief designer of the Beidou-3 satellite of the Fifth Academy of Aerospace Technology Group
The Beidou project has undergone so many generations of development from the beginning of construction to the present. We now say that it is the development of three generations of astronauts. (The first generation of Beidou people) have made a great example before. Their personal contributions have driven us new generations and the forces behind us to use them as our role models to carry out our own work.
【Explanation】Behind the glorious mission, the family who stands behind and silently supports it. Pan Yuqian said that the aerospace family members are a very special group. They have taken on more family responsibilities for the Beidou people working on the front line. Therefore, the loss of their families has become a regret for many colleagues.
[Same period] Pan Yuqian, Chief Designer of Beidou-3 Satellite, Fifth Academy of Aerospace Science and Technology Group
Work is very busy, overtime and overtime is also the norm, because we want to ensure the completion of the task, we may pay more heart and effort, its probability of success will be higher, we want to do the work To be as fine as possible, as close to perfect as possible, I hope it is such a state. So in this case, you may not be able to do both at home (and work), and you will spend time with your family, including the elderly, including loved ones, and children.
[Same period] Zhang Xu, the chief designer of the Beidou-3 satellite of the Fifth Academy of Aerospace Technology Group
First of all, they can realize that the profession we are engaged in is a glorious profession and a sacred profession with a historical mission. She (daughter) also has classmates, other people’s mothers or other people’s fathers can pick up and drop off after school, plus accompany her to participate in various activities on weekends, we basically rely on ourselves, so she feels that we This kind of work may have too little care for the family.
[Commentary] Talking about what he wants to do next, Zhang Xu said that he really wants to accompany his child to school and school, and can participate in activities with her on weekends. In the future, as the child grows up, Zhang Xu also hopes that her daughter will like her beloved career.
Reporter Xu Pengpeng reports from Beijing
Editor in charge: [Tao Guangxiong]