After the successful launch on December 27, Practice 20 successfully reached geosynchronous orbit after seven orbital maneuvers. During this period, a series of new technology in-orbit tests were conducted and important test results were obtained, including the completion of the "one-time deployment and two-dimensional two-dimensional deployment" of the largest and most complex deployment of the solar wing in China, the vector adjustment mechanism was successfully unlocked, and the laser terminal Unlocked successfully in orbit.
Practice No. 20 is full of "black technology", and its main mission is to conduct a comprehensive on-orbit verification of the East V platform. The Dongwu platform is a new generation of large-scale geosynchronous orbit satellite platform independently developed by China. Based on the Dongwu platform satellite, the takeoff weight can reach 8-9 tons, the load carrying capacity can reach 1500-1800kg, and the design life is up to 16 years.
Compared with China ’s main active East 3 and East 4 platforms, the East 5 platform ’s weight, power, and on-orbit life have been improved by leaps and bounds, which will fill the gap in China ’s large-scale satellite platform spectrum and meet the large-capacity satellite applications in the next 20 years. demand. It can be widely used in many fields such as high-orbit communication, microwave remote sensing, optical remote sensing, space scientific detection, scientific experiments, on-orbit services, etc. It is a rare multi-adaptive platform in the world aerospace field.
It is reported that the successful positioning of the 20th satellite marks a major breakthrough in the verification of the Dongfanghong-5 platform, indicating that China is becoming a world-class communications satellite "club". After the success of the 20th fixed-point practice, practical on-orbit testing will be carried out. The Fifth Academy of Aerospace Science and Technology Group will expedite the on-orbit test verification of the East V platform and allow more satellites to use the East V platform at an early date.