Frontiers of Science and Technology丨In the middle of the night, China's Gaofen-12-03 satellite was successfully launch!

At 23:46 on June 27, 2022, Beijing time, the Long March 4C carrier rocket at the Jiuquan Satellite Launch Center to successfully launch the Gaofen 12-03 satellite into the air, the satellite successfully entered the predetermined orbit, and the launch mission was successfully completed. success.

, duration 00:37
Jiuquan Satellite Launch Center

The satellite is mainly used in the fields of land census, urban planning, land rights confirmation, road network design, crop yield estimation and disaster prevention and mitigation.

The satellites and rockets launched this time were all developed by the Eighth Academy of China Aerospace Science and Technology Corporation. The reporter learned from the institute that there are many new states for the first flight of the rocket: in order to adapt to the high-density launch model, the launch site process optimization is applied for the first time, the model is the first to use the fully autonomous alignment technology that can identify the shooting direction, and the first application in the Jiuquan Satellite Launch Center. Digital pressurization control and new research equipment from Wai'an realize the unification of Jiuquan and Taiyuan satellite launch centers.

The fully autonomous alignment technology applied for the first time in the Chang-4 model has been verified by the measured data of multiple launch sites. Compared with the traditional optical aiming to transmit the azimuth angle deviation, the fully autonomous aiming relies on the inertial group measurement data for real-time azimuth calculation and automatic computer binding. The method reduces the risk of personnel transfer, and is not affected by climatic environments such as blowing sand, strong winds, and showers, and improves the versatility and adaptability of the rocket.

Jiuquan Satellite Launch Center

The mission is the 425th flight of the Long March series of launch vehicles.