Airspace closure notices indicated that the launch vehicle would, exceptionally, head westwards instead of eastwards, as is typical for an orbital launch to low Earth orbit. The spacecraft was later catalogued by the U.S. Space Force in a 701 by 944-kilometer-altitude orbit with an inclination of 142 degrees\u2014a highly retrograde orbit, or opposite to the Earth\u2019s rotation.<\/p>\n
CASC states Yaogan-50 (01) will primarily be used for national land surveys, crop yield estimation, and disaster prevention and mitigation, a typical and generic description for a Yaogan satellite. Yaogan is thought to be a series of remote sensing satellites with military applications, including spacecraft with synthetic aperture radar, optical and signals intelligence payloads.<\/p>\n
The precise intentions for placing a Yaogan satellite into a highly retrograde orbit were not immediately clear. Such orbits trade launch efficiency for higher relative ground-track velocity and repeated coverage of mid-latitude regions, suggesting mission requirements that differ from traditional sun-synchronous imaging. Israel often uses highly retrograde orbits, launching over the Mediterranean Sea. Unlike Israel, which is geographically constrained from launching eastward, China faces no such limitation, making the choice of a highly retrograde orbit notable.<\/p>\n
The designation of (01) means further Yaogan-50 satellites may be sent into similar highly retrograde orbits in the future. Such launches incur a penalty in terms of fuel and payload capacity, as the launch vehicle needs to achieve orbital velocity without the aid of the rotational speed of the Earth.<\/p>\n
More broadly, the mission follows a recent trend of Yaogan satellites\u2014previously only sent into low Earth and Sun-synchronous orbits\u2014being sent into more diverse orbits, including geostationary<\/a> and medium Earth orbits<\/a>.\u00a0<\/p>\n Guowang batch 18<\/p>\n Just over an hour later, a Long March 8A rocket launched from the coastal Hainan Commercial Space Launch Site near Wenchang spaceport, lifting off at 10:25 a.m. Eastern (1525 UTC). CASC announced<\/a> a successful launch, with nine satellites for the Guowang<\/a> low Earth orbit megaconstellation expected to have been inserted into 50 degree inclination orbits.<\/p>\n The launch is the 18th for Guowang, a state-led effort to build a communications constellation of nearly 13,000 satellites. There are now 145 operational Guowang satellites in orbit, with its operator planning to have 400 satellites in orbit by 2027.\u00a0<\/p>\n The project is part of China\u2019s response to Starlink, both commercially and strategically. Little is known about the satellites, though they are estimated to have a relatively high mass, suggesting payloads for applications beyond communications, such as navigation, remote sensing and space situational awareness for more strategic uses.<\/p>\n The country is also already planning next-generation megaconstellations, with China recently filing paperwork with the ITU<\/a> for constellations totaling more than 200,000 satellites.<\/p>\n The expendable Long March 8A<\/a> debuted in early 2025 and completed six launches successfully across the year. CASC noted the launch took place 18 days after the previous Long March 8A launch, and the corporation plans to further optimize the launch and testing process and accelerate its cadence in 2026, in particular to support the construction of Guowang.<\/p>\n China\u2019s 2026 launch plans<\/p>\n The launches were China\u2019s first and second orbital launch attempts of 2026. CASC has not yet issued a clear plan for its launches this year, though there are indications it looks to accelerate from 73 launches it conducted in 2025 to more than 100 in 2026. China launched 92 times overall in 2025<\/a> with commercial launches included.<\/p>\n Commercial launches will further swell China\u2019s overall launch activities, including launches of new potentially reusable launchers such as Zhuque-3 from Landspace, Tianlong-3 from Space Pioneer, iSpace\u2019s Hyperbola-3, Nebula-1 from Deep Blue Aerospace, Pallas-1 from Galactic Energy and Orienspace\u2019s Gravity-2.<\/p>\n
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