After nearly 8 days' flight, the last networking satellite of Beidou satellite navigation system was successfully fixed in geosynchronous orbit 36,000 kilometers away from the Earth today (June 30th) 14: 08+05. At present, the satellite antenna has been deployed, the payload has been turned on, and the satellite is working normally in orbit. At this point, the TT&C Center of Xi 'an Satellite successfully completed the TT&C mission of the early orbit section of Beidou "Final Star", and all 30 Beidou-3 satellites were transferred to the long-term management mode. After the launch of the last networked satellite of Beidou satellite navigation system on June 23rd, Xi 'an Satellite Monitoring and Control Center started a 24-hour real-time monitoring mode for this satellite. According to the flight control plan, they organized several monitoring stations such as Weinan, Sanya and Jiamusi to track and measure the satellite and determine and calculate its orbit. At the same time, they formulated a perfect orbit transfer strategy, and carried out apogee orbit transfer and fixed-point capture on the satellite several times, and finally delivered the satellite to the target point accurately. At present, the Beidou-3 satellite has entered the on-orbit long-term management task mode, and Xi 'an Center has established a system of one satellite, one responsibility and one backup to ensure that each satellite is managed at all times.
What does it mean to measure whether a country is a space power as the star of Beidou? There is a strict and complicated index system. To build China into a space power, it is necessary to leap along this index system and complete a historic leap from quantitative change to qualitative change. But for the public, there is a more intuitive angle to measure whether a country is a space power, and that is to look at its performance in major aerospace fields. Looking at the major space powers in the world, especially the United States, it is not difficult to find that space powers have "three standards": an independent, stable and reliable global navigation system, a self-built and operated space station system, and mature deep space exploration capabilities such as exploring the moon and Mars.
Based on this, observing China Aerospace, we can proudly say that the successful flying of the last star of Beidou-3 marks that the Beidou navigation system built in China for 26 years and generations has finally completely completed the task of building a global constellation; World-class space infrastructure has been dedicated to the international family, which indicates that China has not only grown into a world-famous space power, but also taken a big step towards building a space power in an all-round way.
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