HELSINKI — Business house monitoring knowledge displays U.S. satellites coordinating maneuvers to care for proximity and steady commentary of a couple of Chinese language spacecraft in geostationary orbit.

Observations by means of business house area consciousness supplier Comspoc display USA 324 and USA 325, a couple of U.S. Geosynchronous Area Situational Consciousness Program (GSSAP) satellites, executing a “handoff” operation between 14–18 March whilst monitoring China’s Shiiian-29A and 29B satellites.

The geostationary orbit (GEO) is a belt 35,786 kilometers above the equator at which satellites’ orbital pace fits the rotation of the Earth. Elevating or decreasing an orbit above or underneath GEO permits them to go with the flow both west or east alongside the GEO belt respectively, permitting repositioning.

“For 4 days from 14-18 March, USA 324 and USA 325 (GSSAP) situated themselves on reverse aspects of China’s Shijian-29A and 29B — a coordinated “bracket” offering commentary angles from each east and west, adopted by means of a handoff for steady watch at the Chinese language pair,” the COMSPOC Operations Staff wrote in a post on X.

USA 324 (GSSAP-5) had closed to inside of more or less 63 km of Shijian-29A by means of March 19, a fairly shut distance in GEO that permits detailed commentary whilst closing inside of obvious protection margins. USA 325 (GSSAP-6), which have been monitoring the pair since early January, carried out a burn to go away the realm, round 73 levels East, March 18, finishing the surveillance handover.

🛰️ GEO INSPECTION EVENT: US satellites hand off on China’s SJ-29 pair

For 4 days from 14-18 March, USA 324 and USA 325 (GSSAP) situated themselves on reverse aspects of China’s Shijian-29A & 29B — a coordinated “bracket” offering commentary angles from each east and west,… pic.twitter.com/Pogr3u635G

— COMSPOC_OPS (@COMSPOC_OPS) March 26, 2026

The Shijian-29 pair, a part of a wide, experimental and steadily categorised collection of satellites, had been launched towards GEO in overdue December 2025 on a Lengthy March 7A rocket. No photographs of the spacecraft had been printed, with China’s state-owned primary house contractor CASC describing the pair as to be principally used to “habits verification exams of recent applied sciences for house goal detection.” 

This might be interpreted as being for house situational consciousness (SSA) functions, which means the U.S. and China’s inspector satellites are, as characterised by means of COMSPOC “inspectors looking at inspectors.” On the other hand, the functions and operational position of Shijian-29A and 29B stay unclear.

Flooring-based observations of Shijian-29A and 29B in January by means of s2a Programs, a Swiss SSA company, shed some additional mild at the pair. It means that Shijian-29A, evolved by means of CASC’s Shanghai Academy of Spaceflight Generation (SAST), seems a lot brighter than Shijian-29B, evolved by means of the Innovation Academy for Microsatellites of the Chinese language Academy of Sciences (IAMCAS). It’s unclear if this distinction in obvious brightness is due to the respective dimension, form and even coatings of the spacecraft.

The episode is the most recent in a chain of increasing maneuvers and exchanges in GEO amongst primary spacefaring powers, particularly the U.S., China and Russia. Those have fielded satellites able to rendezvous and proximity operations (RPO), elevating the query of the road between benign inspection and possible counterspace packages.