Russia deploys co-orbital anti-satellite weapons near US satellites

A top commander at US Space Command has raised new concerns about Russia’s deployment of co-orbital anti-satellite weapons, designed to shadow and potentially target critical American satellites in low-Earth orbit. Speaking at a recent briefing, General Stephen Whiting confirmed that Moscow’s experimental satellite program has evolved from testing into operational readiness, with several launches already positioning spacecraft near sensitive National Reconnaissance Office assets.

The system in question—widely identified by Western analysts as the Russian Nivelir program—employs a layered approach that mirrors the concept of a Matryoshka nesting doll. Each Nivelir satellite is launched into orbit as the outermost layer, followed by the release of smaller, maneuverable sub-satellites. These inner modules are capable of high-speed adjustments, including the ejection of an unidentified projectile during a 2020 test. Analysts later determined this was likely a kinetic interceptor rather than a passive tracking device.

A decade of testing and escalation

Russia’s pursuit of co-orbital ASAT technology began over a decade ago, with the first Nivelir-class satellite launching in 2013. Subsequent missions refined the technique, culminating in multiple near-passes of US reconnaissance satellites. The 2020 test, in which a sub-satellite released a high-velocity object, marked a turning point in operational assessment. While Russian officials have not officially acknowledged the program’s offensive capabilities, US Space Command has characterized the architecture as a deliberate threat to space-based assets.

The Nivelir design relies on proximity operations—keeping Russian satellites in close formation with their intended targets before initiating maneuvers. This approach complicates defensive responses, as traditional tracking systems may struggle to distinguish between benign inspection satellites and hostile interceptors. The layered structure further masks intent, with outer satellites concealing inner modules until the final approach.

Strategic implications for global space security

The deployment of operational co-orbital ASAT weapons raises immediate concerns about escalation in space. Unlike ground-launched interceptors, these systems operate in the same orbital regime as civilian and military satellites, increasing the risk of miscalculation or accidental collision. The proximity operations demonstrated by Nivelir satellites suggest a capability to disable or degrade US satellite functions without triggering kinetic debris fields, a feature that could make such attacks harder to attribute.

US Space Command has emphasized the need for international norms to govern on-orbit behaviors, particularly as more nations develop similar technologies. The command’s annual reports have highlighted Russia’s program as a destabilizing factor in space security, alongside China’s expanding ASAT portfolio. While Russia denies hostile intent, the physical proximity and test outcomes indicate a clear intent to establish a credible counterspace capability.

What’s next for space defense and diplomacy

In response, the Pentagon has accelerated investments in satellite resilience, including maneuverable platforms and distributed architectures that reduce single-point vulnerabilities. The Space Force’s Commercial Satellite Communications Office has also explored partnerships with private sector operators to diversify critical data relay paths. Meanwhile, diplomatic efforts through the United Nations Committee on the Peaceful Uses of Outer Space aim to establish transparency measures, such as pre-launch notifications for co-orbital satellites.

For now, the Nivelir program remains a symbol of the shifting balance in space power. As Russia operationalizes its co-orbital weapons, the question is no longer whether such capabilities exist, but how the world will adapt to a future where satellites in low-Earth orbit are no longer safe from silent interception.