Shi Jian 25 (SJ 25)

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
Type / Application: Technology, satellite servicing
Operator:
Contractors: SAST
Equipment:
Configuration:
Propulsion:
Power:
Lifetime:
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Orbit:
Satellite COSPAR Date LS Launch Vehicle Remarks
Shi Jian 25 (SJ 25) 2025-002A 06.01.2025 Xi LC-3 CZ-3B/G2

Launch Sites:

  • Xi =   Xichang Space Center (Songlin), Sichuan, China   China

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