Hi, I am an avid sky watcher and usually I notice little balls or white and sometimes blue lights traveling slowly overhead. Even when these objects are still overhead they fade out as if they were moving further away but they will still be directly overhead as I mentioned.

The most recent sighting of one of these balls of lights my sister and I were standing out side of her house and I said, "Hey, there goes one of them things."  My sister looked up and noticed it coming our direction.
As soon as it got overhead of us it stopped but then after about a three or four second pause the ball of light started moving very erratically from side to side.
My sister thought it might be a satellite, but I told her I don't think they move that fast.
I was wondering if you have heard anything like this before?  Thank you
Witness does not indicate date of sighting.  PD