Russian Satellite’s Rare Approach to an Spacecraft Has Experts Questioning Whether it Was an Intimidation Tactic

A Russian satellite maneuvered to within roughly 500 meters of a commercial Earth-observation spacecraft over the weekend, according to space-tracking company LeoLabs, an encounter that may represent an unprecedented unapproved rendezvous between two active satellites in low Earth orbit.

The spacecraft, Kosmos 2612, also known as Cosmos 2612, approached ICEYE-X36, part of a commercial radar-imaging constellation whose operator supplies intelligence services to Ukraine. The Russian satellite's purpose remains unknown, and the observations do not establish that it attempted an attack or disrupted the other spacecraft.

Nevertheless, its ability to approach, remain nearby and adjust its position demonstrated capabilities that could support surveillance, intimidation or interference, LeoLabs told CNN. The encounter began accelerating October 15, when Kosmos 2612 closed a separation of approximately 350 kilometers, or 217 miles. By early October 16, it was less than five kilometers, about three miles, from ICEYE-X36.

The Russian spacecraft made additional adjustments to maintain a nearby position over the weekend. LeoLabs estimated that the distance narrowed to roughly 500 meters, approximately one-third of a mile, during part of the encounter.

The company cautioned that repeated maneuvers and difficult tracking geometry introduced uncertainty into the separation estimates. By Monday, Kosmos 2612 had begun moving away.

Astrophysicist and satellite analyst Jonathan McDowell offered a carefully qualified assessment of the maneuver's significance. Writing on X, he said that, to his knowledge, it was the first rendezvous in low Earth orbit "of two active satellites where the owner of one of the sats did not give approval."

ICEYE acknowledged the situation Monday but offered few operational details. "We are aware of the situation and tracking it closely. Our constellation architecture is designed for continuity and resilience," the company said in a statement provided to CNN.

ICEYE-X36 uses synthetic aperture radar, a technology that allows imaging during darkness and through cloud cover. Those capabilities make radar satellites useful for monitoring developments when conventional optical imagery is limited by weather or lighting.

ICEYE has publicly documented its work supporting Ukraine. In a January announcement describing an expanded partnership, the company said its constellation helps provide Ukrainian forces with persistent situational awareness. However, whether ICEYE-X36 specifically supports Ukrainian military operations remains unconfirmed.

The latest encounter followed months of unusual Russian orbital activity around the satellite. In a June analysis, the Royal United Services Institute, a British defense and security research organization, reported that four Russian military satellites had adjusted their trajectories in late May to match ICEYE-X36's orbital plane.

RUSI analyst Juliana Suess noted that such adjustments consume valuable resources and that positioning several spacecraft suggested deliberate interest. The satellites' precise capabilities were unknown.

RUSI also identified intimidation and electronic interference as possible objectives. Jamming, for example, could disrupt communications by introducing radio noise. None of those possibilities establishes what Kosmos 2612 actually intended or did during this encounter. CNN said it sought comment from Russia's defense authorities and Roscosmos.