Jiemian News Reporter｜Jiang Xi
Another private rocket company參與千帆星座組網。
Beijing time in September16日06時00分, Eastern Space Gravity No. 1(遙三)·The Qianfan Transit launch vehicle is in中國The East China Sea was ignited and launched into space, carrying 8 Qianfan satellites.星座The networking satellite and an EUHT technology test satellite were sent into the predetermined orbit, and the launch mission was a success.
This mission is the first time that Eastern Space has carried out a giant low-orbit satellite Internet星座The network launch mission is also the world’s first low-orbit broadband Internet launch at sea.星座Networking tasks.
This mission also makes Oriental Space the first batch in China to undertake China’s giant low-orbit satellite Internet星座One of the companies that organizes network launch missions.
千帆星座, also known as G60 Starlink, is a Chinese自主可控large-scale low-orbit broadband satellite internet星座，由Shanghai Yuanxin Satellite Technology Co., Ltd. (hereinafter referred to as Yuanxin Satellite)Construction and operations. Qianfan星座It plans to launch 3,600 satellites by 2028, with a total plan of more than 15,000 satellites.
Satellites are an important infrastructure, equivalent to mobile base stations built in space. By launching a certain number of satellites, a satellite-scale network will be formed to radiate around the world. It can provide communication services such as broadband Internet access to ground and air terminals. It is the carrier of international information transmission channels.
Because high-quality locations and communication frequencies in low-Earth orbit are scarce strategic resources, the international rule of “first come, first served” is adopted. And in accordance with the requirements of the International Telecommunications Union (ITU), the applicant must deploy according to a certain rhythm after declaring the frequency orbit, otherwise the applicant’s satellite scale will be gradually reduced.
千帆星座Currently in the high-frequency networking period, there is an urgent need for large-capacity, high-frequency, low-cost transportation supply.
With the completion of this mission, Qianfan星座The number of satellites increased to256 pieces.
At the Pujiang Innovation Forum Commercial Aerospace Special Forum held on September 13, Shang Lin, general manager of the Yuanxin Satellite System General Department, revealed that 324 satellites are planned to be completed by the end of the year. Based on this calculation, 68 more need to be launched within the year.
Policies have also become an important driver of satellite launch speed.. Recently, the Ministry of Industry and Information Technology issued the “15th Five-Year Plan for the Development of the Information and Communications Industry”, which clearly requiresStrengthen high, medium and low orbit satellites星座Collaborate to improve the capacity of high-orbit wide-narrowband communication satellite systems and enhance the capabilities of low-orbit satellite Internet, satellite Internet of Things and other networking services.
Oriental Space told Jiemian News and other media that previously, the Qianfan network was mainly undertaken by the national team. The participation of commercial rockets means that the “national team + commercial team” collaborative pattern is accelerating.
This trend was confirmed the day before.
September 15, the Zhuque-2 improved Yaoqi launch vehicle launched 10 Yuanxin satellites and Qianfan polar orbit 19 satellites into the predetermined orbit, and the flight test mission was successful.
This is also the first time that the Zhuque-2 series launch vehicle has implemented large-scale satellite Internet星座It is also the first time that a Chinese private commercial aerospace enterprise has undertaken a large-scale satellite Internet network task.星座Networking tasks.
東方空間本次任務The net payload weighs more than 3 tons and the orbit height reaches 800 kilometers, setting a record for China’s single sea launch payload weight and orbit altitude, verifying the sea launch mode’s adaptability to medium and large satellite payload tasks.
This is the second time that the Gravity-1 rocket has carried out a long-sea launch mission, about 56 days after the last mission.
Gravity-1 has a low-Earth orbit carrying capacity of 6.5 tons and a 500-kilometer sun-synchronous orbit carrying capacity of 4.2 tons. It is currently the world’s largest solid launch vehicle with the largest carrying capacity. It successfully made its first flight in January 2024 and has been successfully launched four times in a row. It is now in the stage of mature and large-scale commercial operation.
此次發射也是中國The closest distance between satellite manufacturing and launch sites。衛星制造在上海，Satellite launch is also happening上海附近海域，Improved through land and sea linkage中國商業航天Combined manufacturing and launch efficiency。
Previously, Gravity 1 and Remote 4 had achieved中The private commercial rocket launched at sea in the East China Sea of the Yangtze River Delta, which was a “zero breakthrough”. Yaosan continued to launch in the sea east of Shanghai, achieving “Shanghai Star launched in the sea of Shanghai”，Explore the path to open up the entire closed loop of “onshore manufacturing and offshore development” for the Yangtze River Delta.
Oriental space means,The Yangtze River Delta gathers a large number of satellite R&D and manufacturing companies. In the future, satellites will be produced locally and transported to the nearby offshore launch station, which can reduce costs and shorten the launch preparation period.
Jiemian News learned that,This mission is the same as the last Yaosi-4, which was launched with a full payload, and this time the payload is heavier.
On July 22 this year, Eastern Space Gravity-1(遙四)·The Starlink launch vehicle sent 9 satellites into the predetermined orbit and simultaneously carried out a load test. The mission was successful, marking the success of the mission.Gravity One has officially entered the stage of commercialization and large-scale operation with stable performance of contracts, and has the ability to undertake regular星座The ability to network and batch launch tasks.
Oriental Space said that the “Gravity-1” mission is currently scheduled at a frequency of once every two months.The development of the Gravity 2 reusable large liquid launch vehicle is also accelerating and will be launched soon.
Gravity-2 is a second-generation large-scale liquid launch vehicle built by Oriental Space for large-scale networking. It has a transport capacity of 21.5 tons in low-Earth orbit and 15 tons in a 500-kilometer sun-synchronous orbit, which is about three times that of Gravity-1.
Jiemian News learned thatCurrently, the entire Gravity-2 rocket is undergoing various large-scale ground tests before its first flight, and various development nodes are being steadily advanced.
Eastern Space in the near future將Carry out the second-stage test run of Gravity 2 to verify the matching of the power system and engine, the propellant filling process and other capabilities. After that, Oriental Space will carry out a sub-stage test run to assess the ability of multiple engines to work in parallel, comprehensively verify the coordination and reliability of various rocket systems, and make comprehensive preparations for the first flight.
