Another photographic anomaly [Long exposure of plane lights]

I've just joined today so that I could post some photos that were baffling me and got a load of really intelligent answers really quickly. Am so knocked out to find an intelligent still functioning life-form out there on the internet that I'm going to upload 3 other anomalies that I've photographed over the last few years to see if you guys can figure what they are and what's causing them. The first lot were taken on August 15th 2015 at dusk. I was hoping to catch the Leonids but got these shots instead. Promise I've not been on Photoshop. Whatever it is falling down through Ursa Major, it ain't a meteorite is it?

It's a long exposure (several seconds) of the lights of a plane.


Similar to this:


Or many other examples. I once photographed a similar streak as it was leaving a contrail:
https://www.metabunk.org/moonlit-contrails-at-night.t2964/

This was a five second exposure. Yours is probably 5-10 seconds.