Bright white circle above our atmosphere shooting across sky at impossible speeds

Pulled over after seeing a bright white circle which looked to be above the clear blue sky. It shot across the sky, so I pulled over to observe, and watched it impossibly shoot from one side of the sky to the other during in which it zigged and zagged for what seemed to be no reason. After about 30 seconds of that it completely disappeared. Please don't contact me, I just thought after this amount of years that this should be known to whoever is keeping track of this type of sighting.