Max Phalange

The range data does freeze from some point near the end of the video, so does not reflect the actual range estimate during that segment. But otherwise the range is in the thousands of meters, which would rule out a small object such as an insect...

This is what frame 984 of Gimbal looks like, showing the object's geometric properties detected by the method described here. Clearly the accuracy of the method is heavily degraded on such frames where the object makes sudden movements leading...

It was a formation of 5 such aircraft in a rough V-formation, as shown in Terry Proctor's video of the event.