U.S. GSSAP satellites execute GEO handoff to monitor China’s Shijian-29 spacecraft
HELSINKI — Commercial space tracking data shows U.S. satellites coordinating maneuvers to maintain proximity and continuous observation of…
China’s Shijian spacecraft separate after pioneering geosynchronous orbit refueling tests
HELSINKI — China’s experimental Shijian-21 and Shijian-25 satellites have separated in geosynchronous orbit after being docked for months…