"Hyperspace tracking is new tech, but the principle must be the same as any active tracker."

— Samantha Carter

An active tracker was a form of technology used to track starships. By the 2390s the Federation had created the Hyperspace tracker. This allowed them to track enemy vessels through hyperspace, which had been impossible before. All active trackers were A-class processes, so they had their own dedicated outbreakers and were controlled by a starship's bridge.