Chapter 6 of Flying Saucers paints a remarkably similar scenario: the scrambling of F-15 fighters in response to a UFO sighting.
I wish people would stop saying it makes no sense for it to have been an above-top-secret U.S. military vehicle because it was flying in broad daylight over congested airspace.
It makes perfect sense if we are testing how well the technology can evade detection while performing surveillance over major airports, facilities, and so on. This hypothesis is especially valid if the goal is to conduct military training in true-to-life scenarios and conditions, a so-called “living lab.”
Just the news reports alone would provide practical information, together with radar data from commercial and military airports, etc., all of which would be available.
But I’m not telling you anything you don’t already know.
It’s all in Flying Saucers!