It sounds like i saw the same object as Genki and Ludd on Monday at around 10:35pm, very similar in appearance to the ISS but much faster.
It passed by Altair, because of its speed i thought maybe it was a plane but there was no sound, no flashing lights, it just looked like a satellite but travelling much faster than any i have seen before.
I think drones can be ruled out due to it being seen over such a wide area. Planes moving that fast would surely make an almighty roar, i didn't hear anything. It looked like reflected light, i agree, not like a light on a plane, and it faded as it moved into the distance.
Probably some kind of satellite/debris and maybe burnt up soon after these sightings? Although the repeated sightings by the starter of this thread might rule this out.
Its been cloudy here lately but i'll keep my eyes out next clear skies and try get some footage if it appears again.