We're all wrong, apparently: it's not a bug because it clearly has a speckled luminous trail like a meteor, but it's not a meteor either because it significantly changes direction and exits the frame up top on a nearly vertical trajectory. So now I have no idea wth that thing is.
It's not too fast to be a meteor - I've seen a lot of meteors in my time and this appears to move at roughly the average speed of one. And meteors can be extremely bright: I was in Pasadena one night going for a walk when a meteor the size of a school bus (I learned the size later, from the local tv news) burned up as it streaked across the sky, and briefly lit up the night like daytime...it was an awesome spectacle. Meteors come in a wide variety of luminosities.
You're right: it does turn. I should've watched the last few frames where it banks upward.
To get a better look, I had a closer look frame-by-frame. It clearly has a speckled trail, and it's not an optical artifact - it's a luminous trail that looks exactly like a meteor trail:
View attachment 3010
Then I made a layered composite of multiple frames to map the flight path from start to finish, and bumped up the contrast a little bit:
View attachment 3011
That doesn't look like a meteor path at all: it banks too quickly upward. And it can't be a bug because it has a luminous and irregular trail. It appears to be approaching from a significant distance to me because of the flight path and its relative brightness as it gets closer and then banks upward to a nearly vertical trajectory.
So it's weird. I don't know what that is, but the evidence doesn't conform to a bug or a meteor explanation, imo.