What display feature helps analysts see how a target has moved over time to assess threat trajectory?

• A. Track histories
• B. Threat overlays
• C. Combined displays
• D. Velocity vectors

Answer: (A)

To understand how a target has moved over time, you need a way to visualize its path, not just its current position. Track histories create a trail by showing past positions of the target, often with timestamps. That historical path reveals the trajectory, including turns, speed changes, and whether the target is on a predicted course, making it much easier to assess where the target is headed. Velocity vectors display instantaneous speed and direction at a single moment, which is useful for current motion but doesn’t show the full movement history. Other overlays and combined displays add context, but they don’t specifically illustrate the historical path of movement. So the track histories feature is the best fit.