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China Likely Completes First Autonomous Refueling of Satellites in Geostationary Orbit

Summary
US and Swiss tracking data signal a novel high-altitude docking with refueling between Shijian-25 and Shijian-21

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Experts are increasingly assuming that the Chinese satellites Shijian-21 (SJ-21) and Shijian-25 (SJ-25) carried out a refueling manoeuvre in geosynchronous orbit (GEO) a few days ago. The procedure was closely observed by the U.S. Space Force, among other things. Photos of the Swiss company s2a System show how two points in the GEO are increasingly approaching at more than 35,786 km altitude and seem to merge – a classic sign of a docking manoeu…

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Firstpost News broke the news in Mumbai, India on Wednesday, July 9, 2025.
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