after 8 years, the changerding rocket once again performed a return-type satellite launch mission
2024-09-28
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at 18:30 on september 27, the long march-2d carrier rocket was launched from the jiuquan satellite launch center, accurately delivering the shijian-19 satellite into the predetermined orbit. the launch mission was a complete success.
photo courtesy of china aerospace science and technology corporation
the paper (www.thepaper.cn) reporter learned from the eighth academy of china aerospace science and technology corporation (also known as the shanghai institute of aerospace technology) that the long march 2d carrier rocket that performed this mission is a room-temperature liquid developed by the eighth academy. the two-stage launch vehicle has the characteristics of "high reliability, good economy, and strong adaptability" and can support various launch requirements such as single satellite, multi-satellite parallel, series, and piggyback. its sun-synchronous circular orbit carrying capacity can reach 1.3 tons (orbital altitude 700km).
this mission is the second return satellite launch mission of the changerding rocket after 8 years. in view of possible weak links, the model actively organized the test team to carry out "double thinking" work and carried out special quality review work.
in order to meet the load requirements of the returnable satellite for this mission, the model customized the workflow for buckling the fairing tower 48 hours before launch. in view of the new process and new operation, the test team sorted out the key nodes and risk points, and formulated detailed procedures and countermeasures; at the same time, it organized joint drills with satellites and launch sites to ensure that the fairing buckling work was completed on time after being mounted on the tower, and to ensure subsequent refueling. , the key nodes of the launch were carried out smoothly, and the launch mission was a complete success.
the shijian-19 satellite launched this time was developed by the fifth academy of china aerospace science and technology corporation. as an important new technology test satellite during china's "14th five-year plan", it has achieved a number of technological breakthroughs in terms of reusability, high microgravity support, high load-carrying ratio and re-entry environment test services, and will significantly enhance china's return-to-return capabilities. the technical level and application efficiency of satellites reduce operating costs and provide strong support for the verification of new technologies and the rapid transformation of pre-research results.
photo courtesy of china aerospace science and technology corporation
the shijian no. 19 satellite will carry out space breeding experiments, carrying relevant plant seeds selected and sent by hainan province, anhui province, and the ministry of agriculture and rural affairs. it will give full play to the advantages of space breeding such as "high mutation efficiency, short breeding cycle, and many beneficial mutations" to enhance china's space breeding technology level, accelerate the pace of innovation of germplasm resources, and provide important support for realizing the technological self-reliance of the seed industry and independent and controllable seed sources. in addition, the shijian-19 satellite also carried payloads applied for by five countries including thailand and pakistan, and carried out extensive international cooperation.
this launch is the 92nd launch of the long march-2d carrier rocket, the 219th launch of the long march series of launch vehicles developed by the eighth institute of technology, and the 537th launch of the long march series of launch vehicles.
the paper reporter yu kai
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