
SAST satellite servicing vehicle (model) [SAST]
SJ 25 (Shijian 25) is a Chinese experimental satellite servicing vehicle, which aims to advance critical technologies for on-orbit refueling and extending satellite lifespans.
The satellite was developed and manufactured by the Shanghai Academy of Spaceflight Technology (SAST), a subsidiary of China Aerospace Science and Technology Corporation (CASC).
It was launched in January 2025 on a CZ-3B/G2 rocket. Its duty is the validation of on orbit space debris reduction technologies.
| Nation: | China |
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| Type / Application: | Technology, satellite servicing |
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| Contractors: | SAST |
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| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| Shi Jian 25 (SJ 25) | 2025-002A | 06.01.2025 | Xi LC-3 | CZ-3B/G2 |
