IIRC it is a fairly precise model. They know which antennas, and the directed reflection. The width ground track is not all that wide, but if you're right in th

IIRC it is a fairly precise model. They know which antennas, and the directed reflection. The width ground track is not all that wide, but if you're right in the middle of it they're very bright. Years ago I drove to be in the center of the path and could easily see the flare in broad daylight.