China Galactic Energy CERES-1 Y15 Commercial Rocket Satellite Launch
🚀A CERES-1 Y15 commercial carrier rocket blasted off at 7:39 pm Beijing time on Friday, September 5, 2025, from the Jiuquan Satellite Launch Center in northwestern China, sending sending the Kaiyun-1, Yuxing-3 08 and Yunyao-1 27 satellites into a preset orbit, including the Eros Star in-orbit test platform into a planned sun-synchronous orbit.
This is the second Eros Star in-orbit test platform, following the first launch on June 6, 2024.
The Eros Star is China’s first domestic commercial rocket upper stage in-orbit test platform, independently developed by the Chinese private firm Galactic Energy.
Ceres-1 is a four-stage rocket manufactured and operated by Galactic Energy, the first three stages use solid-propellant rocket motors and the final stage uses a hydrazine propulsion system. It is about 20 m (62 ft) tall and 1.4 m (4 ft 7 in) in diameter. It can deliver 400 kg (880 lb) to low Earth orbit or 300 kg (660 lb) to 500 km Sun-synchronous orbit.
The first launch of a Ceres-1 took place in 2020.
On September 5, 2023, the sea-launch version of this launch vehicle, designated Ceres-1S, made its debut successfully sending to orbit four Tianqi satellites.
The Jiuquan Satellite Launch Center (JSLC) was founded in 1958. It was the first of China's four spaceports. The launch center has been the focus of many of China's historic space ventures, including the country's first satellite Dong Fang Hong I in 1970 and their first crewed space mission, Shenzhou V, on October 15, 2003. JSLC is now a home for many new Chinese commercial space launch firms, like Galactic Energy.
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