Russian Satellite Approaches ICEYE-X36 Within 26 Meters

Russia's Kosmos 2612 military satellite maneuvered to within approximately 26 meters of ICEYE-X36, a US-registered commercial radar satellite associated with intelligence support for Ukraine, during an unprecedented orbital encounter in October 2026. Tracking data cited by space monitoring specialists indicated that the Russian spacecraft approached its target between October 15 and October 19 before changing course and increasing the distance between the two objects.

ICEYE-X36 belongs to the Finnish company ICEYE and operates through its US subsidiary. Launched by SpaceX from Vandenberg, California, in March 2024, the satellite carries synthetic aperture radar capable of imaging Earth's surface at night and through cloud cover. ICEYE supplies radar imagery to Ukrainian intelligence, although the company has not publicly confirmed whether this specific satellite provides that service.

According to LeoLabs, Kosmos 2612 moved from approximately 350 kilometers away to within 5 kilometers of ICEYE-X36 overnight on October 15. The Russian satellite subsequently maneuvered into positions ahead of and behind its counterpart, with their separation reportedly falling below 500 meters during the weekend and reaching approximately 26 meters on October 19.

The operation followed weeks of orbital adjustments. Beginning September 30, Kosmos 2612 used its engines to align its altitude and orbital plane with those of ICEYE-X36, according to satellite tracking analyses reported by Opex360 and TV5Monde.

On October 18, Kosmos 2612 fired its engine again, beginning a maneuver that increased the separation between the spacecraft. Dutch space surveillance specialist Marco Langbroek identified the maneuver at approximately 12:26 UTC that day, after estimating that the satellites had passed within hundreds of meters of each other earlier in the morning.

Langbroek cautioned that the maneuver's purpose remained uncertain.

"It could either be intended to move the satellite farther away from its target or be the first in a series of phasing maneuvers ahead of another approach," Langbroek wrote in an update published October 19.

Independent orbital modeling by Adam Cohen, an engineer with the US Space Force and founder of Orbital Engineering Lab, indicated that Kosmos 2612 had raised its orbit, allowing it to drift farther from ICEYE-X36 without additional maneuvers. His calculations placed the separation at approximately 292 kilometers on October 19, while LeoLabs also confirmed that the Russian satellite was moving away.

The encounter has raised concerns because close-proximity operations can allow a spacecraft to inspect, monitor or potentially interfere with another satellite. The Center for Strategic and International Studies has highlighted the unusual nature of placing satellites in closely aligned orbital planes without the other operator's consent.

"The passage of one satellite in low Earth orbit onto a coplanar orbit is unusual," the Center for Strategic and International Studies explained, noting that such maneuvers require substantial fuel, a limited resource aboard spacecraft, and fall outside the standard mission profile of most satellites.

The organization also warned that close orbital positioning can enable further maneuvers with relatively little additional fuel.

"A satellite in a coplanar orbit with another is positioned to move quickly, with little additional fuel consumption, to conduct proximity operations," the center said.

Such operations can have peaceful purposes when authorized, but the circumstances surrounding ICEYE-X36 have prompted concern about Russia's intentions. The center warned that the maneuver could foreshadow the deployment of a kinetic or non-kinetic space weapon or a deliberate collision.

The satellite's actual mission remains unknown. According to TV5Monde, analysts have suggested that Kosmos 2612 could have collected imagery or other data about ICEYE-X36, while the possibility that it carried a projectile or another weapon has also been raised. Public tracking information has not established that the Russian spacecraft was armed.

The encounter followed an earlier Russian launch on April 16, when a Soyuz 2.1b rocket lifted six satellites from the Plesetsk Cosmodrome. Moscow did not publicly specify their functions. According to the US Space Force's 18th Space Defense Squadron, five of those satellites maneuvered toward ICEYE-X36 in May, and Cosmos 2609 reportedly passed within approximately 2.5 kilometers of it.

Russian spacecraft have previously approached US reconnaissance satellites, including incidents in 2020 and 2024, but the reported distance in the ICEYE-X36 encounter was considerably smaller. The episode also comes amid broader concern about increasingly sophisticated orbital maneuvers by Russia and China, including the ability to reposition, inspect and potentially manipulate other spacecraft.

French Air and Space Force Chief of Staff General Jérôme Bellanger described these developments during a parliamentary defense committee hearing the week before the reports emerged.

"In space, China is making continuous technological progress, marked by an increase in complex proximity maneuvers, to the point of demonstrating its ability to refuel its satellites or deorbit them," Bellanger said.

He also described Russia's expanding use of satellites designed to operate alongside other spacecraft.

"Russia is increasing the deployment of co-orbital hunter satellites, sometimes equipped with sub-payloads that they can release and retrieve," Bellanger said.

For now, tracking observations indicate that Kosmos 2612 has moved away from ICEYE-X36 following its October 18 engine burn. Analysts have not established whether the separation represents the end of the operation or a preparatory maneuver for another close approach.