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China accelerates LEO satellite deployment with two launches in 12 days, but gap remains in launchpad efficiency, rocket reusability: expert_我的网站

A |     　　北京8月21日电 (记者 吕少威)“十五五”期间，北京市门头沟区从绿色发展、创新发展、协调发展、文旅融合、开放共享、安全稳定6大维度，设定32项指标、布局9个领域重点任务，谋划亿元以上项目百余个。　　门头沟区区长吕鸣在21日于北京举行的新闻发布会上提到上述内容。    

    The 24th group of the low-orbit internet satellites aboard a Long March-12 carrier rocket is launched at 12:10 pm on August 16, 2026 from a commercial spacecraft launch site in the southern island province of Hainan. Photo: VCG
Two successful launches among China's recent frequent moves caught particular attention of space watchers - the 24th group of low-Earth orbit internet (LEO) satellites aboard a Long March-12 rocket was sent from a commercial spacecraft launch site in the southern island province of Hainan on Sunday, 12 days after the 23rd group of LEO satellites aboard a Long March-8A rocket was launched from the same Hainan site on August 4.
Sunday's mission marked the 663rd launch of the Long March series of carrier rockets, which on Monday sent an SEO satellite into preset orbit, per Xinhua.
Experts said the launches of two groups of LEO satellites within 12 days underlined that China is notably accelerating its pace of building its satellite internet constellation.
"The launch of LEO satellites has now entered a regular and cyclical rhythm, with batches of satellites continuously being sent into orbit at relatively stable intervals," Kang Guohua, a senior member of the Chinese Society of Astronautics and a professor of Aerospace Engineering at Nanjing University of Aeronautics and Astronautics, told the Global Times on Monday.
China launched the first group of LEO internet satellites on December 16, 2024, proceeding to the 24th batch in about 20 months. Kang said three major production and launch "assembly lines" are supporting the effort: satellite factories featuring centralized design in Beijing, coordinated supply chains and mass production; rockets with streamlined launch and testing procedures and multiple configurations; and launch sites capable of supporting routine constellation deployment.
The Long March-12, which played a key role in the latest LEO satellite launch, is China's first 4-meter-class single-core-stage carrier rocket and was specifically developed for commercial launch needs. It is about 62.6 meters long, has a liftoff mass of 430 tons and can carry more than 12 tons to low-Earth orbit. Its first stage is equipped with four 1,250-kilonewton pump-fed liquid oxygen-kerosene engines and uses a newly developed coal-based aerospace kerosene, according to Shanghai Academy of Spaceflight Technology.
The rocket adopts a "three-horizontal" launch preparation model: horizontal assembly, horizontal testing and horizontal transportation. Depending on mission requirements, it can use fairings with diameters of 4.2 or 5.2 meters and support both single-satellite and multi-satellite launches into different orbits.
"This flexibility makes the Long March-12 particularly suitable for the 'one rocket, multiple satellites' model required for constellation deployment, making it one of the main launch vehicles currently used for LEO constellation missions," Kang said.
The mission also highlighted the launch site's growing ability to support high-frequency launches. The rocket took only two and a half days from being transported to the launch area to liftoff, setting a record for the shortest time a rocket occupied the launch position at the site, Kang said.
Despite the rapid progress, experts cautioned that the 228 satellites currently in orbit remain some distance from the ultimate goal. China's satellite internet project has a long-term goal of deploying nearly 8,000 satellites and is now in an accelerated "weaving" phase.
China's advantage lies in its ability to control costs and boost production efficiency once satellite manufacturing reaches mass-production scale, another expert surnamed Liu told the Global Times.
"Whether it is the production capacity of AI centers or the factory in Hainan, which has an annual satellite manufacturing capacity of 1,000 units, satellite production itself is not the problem," Liu said. "More bottlenecks lie in the operational efficiency of launch pads and the rocket payload and recovery technology."
The real challenge lies in rocket reusability. Only by lowering launch costs and increasing launch frequency can China sustain a pace of more than one launch per week. This is also the strategic significance of accelerating the development of reusable rocket technology, including the Long March-10B and privately developed rockets, Kang further noted.
Chinese Academy of Engineering academician Deng Zhongliang previously said in an interview that satellite internet will serve as an indispensable space-time infrastructure for 6G, enabling emerging industries worth trillions of yuan, including the low-altitude economy, advanced autonomous driving and the Internet of Things (IoT).
    The 23rd group of low-orbit internet satellites aboard a Long March-8A carrier rocket is launched on August 4, 2026 from a commercial spacecraft launch site in the southern island province of Hainan. Photo: VCG
。8月21日，北京市人民政府新闻办公室举行新闻发布会。李磊 摄　　吕鸣介绍，“十五五”期间，门头沟区将一体推进“山水林田湖草沙”保护修复，加快太行山东北部综合治理、西山登峰揽胜森林步道以及灵山高山草甸生态修复。全面推进永定河山峡段、国道108、109以及六环路“一水三线”蓝绿空间风景廊道建设。高质量建设和管理百花山国家级自然保护区，持续开展“迎豹回家”行动，统筹生态保护、绿色发展和民生改善，全力争创世界生物圈保护区。　　门头沟区将统筹推进永定河官厅山峡洪水控制、城区9闸1坝修复改造以及三家店地区山洪治理和排洪能力提升等重大工程。

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D | 　　门头沟区将实施京畿长城沿线修缮、京西古道全线提质工程和潭戒两寺整体风貌提升行动，打造全市首个古寺古村连片文旅融合示范片区，推动潭柘休闲旅游度假区晋级国家级，提升妙峰山、百花山、南石洋、爨柏等景区知名度和品牌影响力。到“十五五”末，全区A级景区数量突破25处，4A级及以上景区超6处，到“十五五”末，旅游接待人次和综合收入实现翻番。　　吕鸣表示，门头沟区将聚力培育新质生产力，高标准建设宜业新高地。布局建设行业智算中心，推进珠窝、鲁家山等万P算力落地，构建“算法仓”，形成10个以上垂类应用模型，落地开源芯片与机器人融合创新中心。搭建视听内容发布传播平台，打造更多“视听+”标杆场景。接续实施“永定河畔微短剧共创计划”，聚焦精品漫剧、微短剧特色赛道，打造京西剧谷·叙事堂、AIGC创作基地、XR沉浸视听实验室、星野OPC社区等特色载体。　　门头沟区还将发挥国家心血管病防治中心引领作用，依托阜外研究型医院和百洋生物医药科研与转化功能性平台，搭建临床研究、精密加工、CRO服务、市场转化的协同创新体系，加速推动新一代人工心脏、4π智能机器人放疗等创新药械产业化。

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Published on:18:15:09