Militaries routinely send satellites to fly by rival vehicles and suss out their capabilities, but scaling up this kind of reconnaissance is increasingly seen by the U.S. military as a challenge best handled by the private sector.

That’s why two space startups, True Anomaly and Rocket Lab, completed a rendezvous mission for the U.S. Space Force last week so complex, it was like something out of “Top Gun.” Their two rival satellites met up in orbit, close enough for one to capture imagery of the other.

The exercise, dubbed Victus Haze, demonstrated the close inspection of a space vehicle soon after it arrived in orbit, a necessity in a world where the U.S., Russia, and China are deploying novel space weapons. “China and Russia launch capabilities to space on a regular basis, and part of the Space Force’s job is to understand what those capabilities are,” True Anomaly CEO Even Rogers, a veteran of the U.S. military’s space efforts, told TechCrunch.

The June mission saw Rocket Lab, a rocket-building rival to SpaceX that recently announced its acquisition of Iridium, launch a spacecraft called Puma just 16 hours and 42 minutes after receiving notice, which is notable because most rocket launches are buttoned up months in advance. A Jackal spacecraft built by True Anomaly was waiting in orbit to intercept it.

As part of the exercise, the company didn’t know where Puma would arrive in space but used onboard sensors to find and identify its target from 2,000 kilometers away. The Jackal then flew close to the target — exactly how close is classified — and orbited it, capturing imagery of different parts of the vehicle, before returning to its starting point in orbit.