Nettie,
That's not aviation traffic. That's just a bit higher up... like mesosphere/thermosphere.
Satellites and likely meteoric origins.
I blink all my images when stacking (CCDStack does that), looking for dud images and anything interesting. I was delighted to see this much reflective traffic in a 12 minute run.
Reminds myself to still do the suspected asteroid I captured passing through NGC1365 environs recently too.