NEWS
Long March 4B Launch Vehicle Successfully Launches Satellite
发布时间：
2025-06-12 14:10
At 12:12 PM on May 29, 2025, the Long March 4B launch vehicle successfully launched the Shijian 26 satellite into its designated orbit from the Jiuquan Satellite Launch Center, marking the complete success of the mission. The Long March 4B launch vehicle responsible for this launch is a three-stage, room-temperature liquid propellant launch vehicle developed by Shanghai Academy of Spaceflight Technology (SAST).
During the launch mission, multiple rocket models operated concurrently within the technical zone workshops at the launch site. Despite limited space and significant coordination challenges, the launch site's technical teams successfully completed operations in the technical zone, from rocket body refurbishment to satellite-rocket docking, showcasing a rigorous, meticulous, and practical work ethic through their well-organized coordination and close collaboration.
The weather in Jiuquan in May was highly variable, with intense heat and dryness, accompanied by thunderstorms, strong winds, and dust storms. These conditions posed serious challenges to the rocket’s transportation, erection, and thermal protection. With tight schedules in the launch zone, both rocket transfer operations coincided with abrupt weather shifts. The Long March 4 team, led by the project’s chief commanders, proactively implemented rain and dust protection measures for the rocket body, mitigating the impact of adverse weather such as strong winds, heavy rain, and hail. With the full cooperation of all parties, the transfer of the rocket body and the satellite-fairing assembly was executed with flexibility and precision. This seamless coordination fully demonstrated the team’s technical expertise, tenacity, combat readiness, and ownership spirit undaunted by challenges.
The mission strengthened management protocols such as the Daily Wrap-Up Meeting System and the customized LDM Digital Management System. By systematically organizing launch site workflows and rapidly addressing pending tasks, the team significantly enhanced the efficiency and effectiveness of quality verification processes.
This launch represented the 110th mission of the Long March 4 series, the 236th launch of SAST-developed Long March rockets, and the 579th flight mission of the Long March series launch vehicles.
