09:01, October 29, 2022

The Long March IID carrier rocket successfully put Test 20 satellite into the scheduled orbit at Jiuquan Satellite Launch Center, and the launch mission was a complete success

The Long March IID carrier rocket carrying out this mission is a normal temperature liquid-fuel two-stage carrier rocket lead developed by the Shanghai Academy of Spaceflight Technology. The takeoff thrust is about 300 tons, and the corresponding capacity for the 700 km solar synchronous circular orbit is 1.3 tons. It has the ability to launch single and multiple satellites at Jiuquan, Taiyuan and Xichang satellite launch centers required by different orbits.

During the implementation of this launch mission, it coincided with the grand opening of the Twentieth National Congress of the Communist Party of China. The test team members were organized to watch the grand occasion of the congress promptly, so as to understand the spirit of the conference, grasp the direction of progress, and turn the launch site into a pioneer position to study and implement the spirit of the Twentieth National Congress of the Communist Party of China. In order to ensure the success of the mission in terms of both the process and the result, the test team put forward higher requirements for the work of the launch site, and used the complete success of the gold medal rocket as a powerful action of testing the learning results. In the work, requirements for comprehensive inspection and maintenance of ground equipment, planning of key nodes in advance, multi-dimensional comparison and confirmation of test data, and one-time confirmation of process records were put forward to ensure high-quality and efficient implementation of the launch mission; In combination with the characteristics of the launch mission itself, targeted reviews of the satellite and rocket joint operation process, landing site safety, satellite and rocket separation safety, and the effectiveness of second-stage bottom heat protection were organized to ensure that risk identification was in place and control measures were implemented effectively. During the mission, the launch site organized five skills exchange activities, covering control system, thrust system, optical fiber gyro inertial system, servo mechanism and lithium battery, to comprehensively improve the overall technical ability of young test team members.

This launch is the 12th mission of the Long March IID model this year, and also the final launch for this model in Jiuquan Satellite Launch Center in 2022. Since August this year, the Long March IID model entered high-density launch period. Facing the parallel high-density tasks of development, production and mobilization, models were planned in advance, and all factories and institutes involved made overall coordination to jointly ensure smooth implementation of each launch mission of the Long March IID rocket, and has achieved eight launches in three months and six launches in two months for the first time, which is a historic breakthrough.

Test 20C satellite was developed by the Institute of Microsatellite Innovation, Chinese Academy of Sciences.

This launch is the 69th launch of the Long March IID carrier rocket, the 173th flight test of the Long March series carrier rocket lead developed by the Shanghai Academy of Spaceflight Technology, and the 445th launch of the Long March series carrier rocket.