Kosmos 2612 Moves Away After Possible 85-Foot Pass Near ICEYE X36

Space is vast, but the operating margin between two active satellites may have narrowed to roughly 85 feet. Public orbital data indicated that Russia’s Kosmos 2612 could have passed that close to ICEYE X36, a U.S.-registered commercial radar-imaging satellite, at about 16:07 UTC on October 19. The Russian spacecraft has since moved away, ending an unusually close encounter with a satellite operated by a company whose imagery is used by Ukraine.

The 85-foot, or 26-meter, figure remains uncertain. A public conjunction forecast calculated that distance from published orbital elements, but the prediction was last confirmed 22 hours before the anticipated pass and was not confirmed again afterward. LeoLabs, which tracks objects in orbit, could not verify or rule out that estimate. It said with high confidence that the satellites came within approximately 500 meters of each other.

Even the wider estimate represents extreme proximity for two active spacecraft whose operators were apparently not coordinating the encounter. Small uncertainties in position and velocity become important at that scale. Public orbital elements can carry kilometer-scale uncertainty, and a maneuver by either satellite can quickly make an earlier prediction obsolete.

Weeks of alignment preceded the close approach

The encounter was not a single high-speed crossing between unrelated orbits. Analysts Clayton Swope and Chantal Li at the Center for Strategic and International Studies wrote that maneuvers beginning September 30 brought Kosmos 2612 into nearly the same altitude and orbital plane as ICEYE X36. Independent tracking also showed progressively closer passes and synchronized orbital characteristics.

LeoLabs described a deliberate-looking sequence: Kosmos 2612 approached from hundreds of kilometers away, changed its position relative to ICEYE X36, remained nearby for an extended period, made additional small maneuvers and then departed under control. Its latest observations showed the spacecraft strongly diverging, confirming that the close-proximity activity had ended.

That sequence distinguishes the episode from a routine conjunction, the term used when orbital paths happen to bring two objects near each other. Kosmos 2612 appeared to match the geometry of ICEYE X36 closely enough to loiter nearby rather than flash past at high relative speed. Its purpose remains unconfirmed.

Russia launched Kosmos 2612 with five companion spacecraft aboard a Soyuz-2.1b rocket on April 17. Their configurations and missions have not been publicly confirmed. Five members of the group subsequently moved into orbital planes shared by multiple ICEYE satellites, while three reportedly made close passes by X36. The observed maneuverability resembles that of inspector satellites designed to approach and examine other spacecraft, although proximity capability alone does not establish the mission.

Why ICEYE X36 attracts attention

ICEYE X36 is a Finnish-built synthetic-aperture-radar satellite launched in 2024 and registered in the United States. Unlike an optical camera, its radar can collect imagery during darkness and through clouds, smoke and poor weather. Those characteristics make commercial radar data useful when continuous observation matters.

Ukraine has used imagery from ICEYE satellites during the war with Russia, including for targeting purposes. ICEYE has supplied radar imagery to Ukraine since 2022, although reports that X36 itself operates directly under Ukrainian government control have not been confirmed. The concern is therefore broader than the status of one spacecraft: supporters of Ukraine worry about Russian satellites getting close enough to pressure or threaten commercial orbital systems on which Ukrainian authorities rely.

ICEYE said it was monitoring the situation closely and emphasized that its constellation was designed for continuity and resilience. A multi-satellite architecture can preserve some service if an individual spacecraft becomes unavailable, but replacing its data quickly depends on orbital coverage, collection schedules and customer access. Constellation resilience reduces dependence on one satellite; it does not make an uncoordinated close approach routine or risk-free.

Rendezvous and proximity operations are inherently dual-use. The same precision navigation needed for inspection, repair or servicing can support intelligence collection, shadowing or interference. Intent is difficult to determine from orbital motion alone, especially when operators do not communicate beforehand.

Kosmos 2612 has now separated from ICEYE X36, and no attack or disruption has been reported. What remains is a rare demonstration of controlled orbital access: a Russian spacecraft aligned with, loitered near and departed from a commercial imaging satellite associated with services used by Ukraine, while the minimum gap may have been anywhere from hundreds of meters down to about 85 feet.

By David Whitaker — Associate editor for AMI’s aerospace and drone systems desk, translating flight systems, aircraft programs, spaceflight, and UAV developments into accessible technical stories.