Spelunker
I don't think it was a satellite. It was large and very bright, not at all like a dim star. I've seen satellites before and this seemed much larger, and very much brighter. Bright like a white flare or firework, but with a bright white trail behind it, not a smoke trail.
And it traversed an enormous arc of the sky in that time. OK, maybe it was 7-8 seconds, I can't be that sure. I stopped and looked for a few minutes to see if there were any more as I have seen meteor showers before now - several years ago. It took a similar path to those showers.
If it had been a satellite, would I not have seen it disappear at the horizon?
This thing seemed to just die out mid-sky. Way before the horizon.
It definitely was not an aircraft. And I had not been drinking or otherwise indulging.
Honest.