I just thought about something.
Do you see that little picture on the bottom that shows a
typical meteor strike ?
You see... it goes at right angle to the scanning field..
Now look at those strange patterns, they all go straight down the line and ocassionally there one crossing meteor in it...

When you look at that meteor pattern, you can visualize like a stone that is thrown into water. It comes with high speed and then it is slowed down massively at one point and all of it´s kinetic energy is absorbed, this is also kind of what happens with the meteors hitting the magneticfield..

I think this is either something big entering the sphere or many small "crafts" in a formation according to the many spikes.

While waching this I have to think of that radarsignature over mexico recently.