China Launches Four Rockets Within 45 Hours as Space Launch Activity Accelerates

China carried out four successful orbital rocket launches within a span of about 45 hours in mid-September, with multiple types of launch vehicles lifting off from different launch sites. The rapid sequence has drawn international attention and highlighted the growing coordination between China's state-backed space sector and commercial aerospace companies.

The launch sequence began on September 15, when LandSpace's improved Zhuque-2 rocket lifted off from the Dongfeng Commercial Aerospace Innovation Test Zone. The liquid-oxygen methane-fueled rocket deployed 10 satellites for the Qianfan satellite constellation. The launch was described as an important milestone for China's commercial aerospace sector because a private rocket company was taking part in a major satellite internet constellation deployment mission.

Later that day, Orienspace's Gravity-1 rocket was launched from a sea-based platform and successfully placed nine satellites into their designated orbits. The following phase of the launch sequence included the Long March-12 rocket, which lifted off from the Hainan Commercial Space Launch Site on September 17 and successfully deployed satellites for China's low-Earth-orbit satellite internet network.

The intensive launch schedule involved both commercial and state-backed aerospace organizations, with missions conducted from inland launch facilities, the Hainan commercial launch site and sea-based platforms. The diversity of launch vehicles and launch locations reflects the expanding capacity of China's space launch infrastructure.

The growing launch tempo is closely linked to the development of large satellite constellations. Unlike traditional space missions that may involve only a small number of spacecraft, satellite internet networks require large numbers of satellites to be deployed within relatively short periods. This creates demand for more efficient rocket manufacturing, launch-site operations, satellite production and mission preparation.

The trend was particularly visible during the week of September 14-20. According to China Securities Journal, China conducted six rocket launches during that week, sending more than 30 satellites into orbit. The launches involved several rocket types, including Zhuque-2, Gravity-1, Long March-12, Long March-2D and ZQ-1-class commercial launch vehicles.

The launch tempo continued later in the month. On September 19, a Long March-2D rocket successfully deployed four PIESAT-2 satellites into orbit. On September 20, the ZQ-1-class commercial rocket Force-1 successfully launched nine satellites in a single mission.

China subsequently conducted additional launches. On September 23, a Long March-8A rocket successfully deployed satellites for the country's low-Earth-orbit satellite internet network from the Hainan Commercial Space Launch Site. The mission marked the 669th flight of the Long March rocket family. On September 24, a Long March-6A rocket successfully deployed the Yaogan-40 04 satellite group into its planned orbit.

The significance of high-frequency launches extends beyond individual rocket performance. As the space industry moves toward large-scale infrastructure deployment, satellite manufacturing capacity, launch-site turnaround time, supply-chain efficiency and commercial demand are becoming increasingly important factors.

China is also continuing to develop reusable launch-vehicle technologies. If such technologies mature and enter large-scale operational use, launch frequency and cost efficiency could become increasingly important factors in the development of the commercial space industry.

The four launches conducted within roughly 45 hours therefore represent part of a broader acceleration in China's space-launch activity. With satellite internet, remote sensing, communications and space-computing applications continuing to develop, China's launch sector is moving toward a model characterized by greater frequency, greater variety and increasingly large-scale deployment.