I am a locomotive Engineer I have been running trains for 37 years.I was on a night run.We just stopped it was just turning day light but the stars where still bright to the south. I was looking at the stars when I saw what I to believe to be a satellite because of the speed at which it was moving and it look just like one.If it had not been moving I would have thought it to be another star.It was that bright and big. But it stopped then it change its path of travail not once but meany time.When it stopped it just stayed in the same place it was hovering in place that's why I know it was not a plane and a chopper can not fly that high or that fast. It look like they where looking for something, when they stopped it would move to the left then right the forward then back at speeds the a human could not stand. I told my Conductor to come here you got to see this he was stunned to see what I was seeing.I told him you just saw your first UFO.I was shocked I believe there are UFO but I had never seen one in all the years running trains at night. I was going to stay there tell I could not see it any more but a train block my view and it turn day light which we could not see it any more as it was in space. I was happy too finally see one as do be leave they are out there as we are here.