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Long March 4C Carrier Rocket was Successfully Launched with Gaofen-12 03 Satellite
At 23:46 on June 27, 2022, Long March 4C Remote Sensing 46 carrier rocket was ignited and went into space at Jiuquan Satellite Launch Center, successfully sending Gaofen-12 03 satellite into the scheduled orbit, marking a complete success of the mission. The rocket and the satellite are both developed by Shanghai Academy of Spaceflight Technology.
Gaofen-12 03 satellite
mainly used in such fields as land resources survey, urban planning, land right confirmation, road network design, crop yield estimates and disaster prevention and reduction.
Long March 4C
The Long March 4C carrier rocket used for this launch mission is a level 3 carrier rocket with liquid propellant of normal temperature, boasting excellent performance and wide range of uses as well as the capability to launch multiple types of satellites with different orbit requirements. It can launch one satellite or multiple satellites at one time, with the carrier capacity at sun synchronous round orbit reaching 3 tons (orbit height being 700 kilometers).
Going forward despite the Covid-19 pandemic to ensure the smooth implementation of the mission
It's the sixth launch mission of the Long March 4C Carrier rocket this year. Young people accounts for more than 70% in the rocket team, most of which are, however, already "veterans" with abundant experience. Benefiting from the intensive training due to frequent launch, these young people grows up fast and have assumed major responsibility in the missions.
Faced with severe challenges caused by the Covid-19 pandemic in Shanghai, member of the Long March 4C carrier rocket team fully demonstrated the spirit of "going where I'm needed", stayed in quarantine in the workplace and worked without interval for over two months so as to ensure the smooth release of the rocket; to ensure the absolute safety of the anti-pandemic work, the pilot team member took the "green leather car" carrying the rocket, overcome all the difficulties in hot summer, traveled across 4800 kilometers of land in 124 hours, 5 days and 6 nights, admiring the great landscape of our country and being more motivated to strive and make contributions.
After entering the launch venue, team member of the Long March 4C carrier rocket strictly abided by the local isolation policies, implemented isolation measures and insisting on wearing protective clothing on work even though they didn't have to, unloading, hoisting and transferring when the temperature reached nearly 40 degrees.
Faced with the release of the satellite and the Covid-19 pandemic in Shanghai, the satellite research team went through thick and thin to overcome various difficulties such as insufficient personnel and time constraints. The two managers of the model made general coordination and command, always encouraging the team member : “difficult times gives us not only difficulties and obstacles, but also challenges and opportunities to increase our willpower and improve our abilities. As long as we work together, we will be able to do all the preparations well.”
All the team members have participated in the mission, and the two managers were stationed in the front line, leading the team to carry out various tasks and assumed responsibilities for organization, coordination and scheduling. On the premise of ensuring the prevention and control of the epidemic, the satellite research and development team assembled quickly, and the designers have seized every minute and second to work in an orderly manner. With the full support of all sides, the team has successfully completed all preparatory work before the release through unremitting efforts.
Identify new situations and complete the task fulfilling quality and quantity requirements
Lots of new requirements for the first release of this rocket: to adapt to the intensive launch, the rocket adopted process optimization technique of the launch site and fully autonomous alignment technology that can identify the launch direction for the first time, adopted for the first time the digital pressure increase control in the Jiuquan Satellite Launch Center to realize the unification of Jiuquan and Taiyuan satellite launch centers.
This is the first time that the Long March 4C carrier rocket has applied the fully autonomous alignment technology, which, after the verification of the measured data from multiple launch sites, compared with the traditional optical aiming to transmit the azimuth angle deviation, calculates the azimuth in real time using fully autonomous aiming and relying on the inertial group measurement data. Its autonmous binding method has reduced the risk of personnel transfer, and without the influence of blowing sand, strong winds and showers, improved the versatility and adaptability of the rocket.
With the surge of launch tasks in recent years, while ensuring test coverage, the rocket adopts the overall testing and the electrical process optimization of the launch site, which reduces the interpretation time of designers in intensive launch missions, further improves model design, tests team work efficiency, improves test quality, and ensure the smooth implemention of work plans.
While working at the launch site, team member of the Long March 4C carrier rocket inherited and carried forward the work style of "sticking to high standards and observing strict requirements" and the working method of daily quality confirmation. Various meetings were held, combined with the current work content and previous cases, to carry out the education of quality thinking, quality concept and quality awareness for the test participants, so as to ensure that all test team members put quality work in their priorities, adhere to a "strict, careful and meticulous" style, and implement it into the daily work.
Strive to be the first to show the dedication and struggle of the aerospace practitioners
After entering the test site, the satellite test team were faced with the challenges of implementing strict isolation and control requirements and ensuring the progress of the test task. They did not retreat, but rose to the challenge. Under a closed-loop management, all the members of the test team wore airtight protective clothing, and worked hard in the transition room, electrical measurement room, and factory hall for more than 12 hours a day. Faced with the shortage of test team members, the current members took their initiative to carry out different tasks outside the scope of their own positions, with clear division of labor and efficient cooperation, thus ensuring the complete success of plans in the test site and the tasks reaching standard.
With the loud and firm password coming from the test workshop, the test team members of Gaofen-12 03 satellite felt the joy of the success of the phased mission,and the heavy responsibilities on their shoulders. They have spent countless days and nights seizing every minute and second, keeping in mind the mission and responsibilities of the "Young Task Force of Dreams". The busy figures of "aerospace blue" and "angel white" can be seen everywhere in the workshop and electrical testing room. The test team accurately interprets, quickly researches and judges, and completes various test items of the test site with high quality, achieving "good data comparison consistency, good status confirmation". They have made complete process test records, process quality and safety control, with rigorous and pragmatic working attitude, completed the test site report with high efficiency and high quality, and ensured the smooth passage of the transition review. The satellite launch mission being a complete success, the satellite test team members never stops striving for better achievements. Some team members has already went to Xi'an to start the flight control test.
It is the 91st launch of the Long March 4C series carrier rockets, the 160th launch of the Long March series carrier rockets developed by Shanghai Academy of Spaceflight Technology, and the 425th launch of the Long March series carrier rockets.