Between the sharp left turn and the fact that the alt and speed are so straight i'm leaning toward it being a drone, just my thoughts, could be wrong
not sure if it's Delivery or DiGIornos
Waiting to see what aircraft this drone disappears into,lol
It's a drone, it started out at 26,000ft, flying to perfect on alt &speed, it may be one of ours looking for one of theirs