A bright white light that streaked across the sky from left to right.

It was late in the evening, maybe around 9pm. We were tending to our dog who had just been injured and out of nowhere a white light appeared in the eastern sky near the constellation Orion. I couldn't observe a shape, other than that it was brighter than any star or planet in the sky. It wasn't Venus, it was brighter even than that. The object was moving very fast, maybe moving 45 degrees across the sky in under a second. The sky was slightly cloudy and the object appeared to be in front of far away clouds. There was no sound other than the normal ambient sound of the environment. It moved in a straight line almost horizontally like a meteorite might but it seemed brighter and to move in a different direction than a meteorite would. Shortly after it moved around 45 degrees it disappeared and the light went away. I'm not sure about origin but it seemed to be moving faster than any object I've seen before