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A Chinese Satellite Just Grappled Another And Pulled It Out Of Orbit

Published: February 20, 2022
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Source: the drive

AChinese satellite was observed grabbing another satellite and pulling it out of its normal geosynchronous orbit and into a “super-graveyard drift orbit.” The maneuver raises questions about the potential applications of these types of satellites designed to maneuver close to other satellites for inspection or manipulation and adds to growing concerns about China's space program overall.

On January 22, China’s Shijian-21 satellite, or SJ-21, disappeared from its regular position in orbit during daylight hours when observations were difficult to make with optical telescopes. SJ-21 was then observed executing a “large maneuver” to bring it closely alongside another satellite, a dead BeiDou Navigation System satellite. SJ-21 then pulled the dead satellite out of its normal geosynchronous orbit and placed it a few hundred miles away in what is known as a graveyard orbit. These distant orbits are designated for defunct satellites at the end of their lives and are intended to reduce the risk of collision with operational assets. 

 

The unusual maneuver was observed by telescopes belonging to commercial space awareness firm Exoanalytic Solutions. During a webinar hosted by the Center for Strategic and International Studies (CSIS) this week, Exoanalytic Solutions’ Brien Flewelling said the SJ-21 satellite “appears to be functioning as a space tug.” Space Command did not respond to a request for comment, Breaking Defense reports

Space Force has been increasingly turning to commercial space companies to provide a variety of data and services to boost its situational awareness, and to that end, Joint Task Force-Space Defense awarded Exoanalytic Solutions a contract in 2021 to provide space domain data. “Comms, data relay, remote sensing, and even ISR and some other things — [these] capabilities are increasingly available in the comm

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