A bright light orb, flies in a Z pattern.

I was laying in our back yard.  It was a clear night and I was looking at the stars.
All of a sudden, this round light raced across the sky.  It appeared to be in our outer atmosphere.  The light was as bright as the stars, but the size, if I held a No. 2 pencil out, the size was the roundness of the eraser.  Measuring from where I was, it travelled a straight line about eight inches, and then stopped, and at an angle like a V, travelled another straight eight inches, and stopped, and a V again, travelled another eight inches, and then disappeared.  The pattern was a Z pattern.
That is it.  I can not identify it.  It was way to fast for a helicopter, Jet, or even a rocket.  Plus it stopped for an instant and changed directions.  Twice.  
So it was not a meteor, and it was not a satellite.