Slow moving "star" or satellite SW Florida...UFO?

Happened at 648pm, was just South of overhead, heading South. Saw it for about 10-15 seconds until it dimmed. I looked at Spaceweather's satellite tracking site and there is nothing for that time and area. Maybe it was a minor satellite that they don't have on that site. I have seen several UFOs in this area (Englewood, Florida, halfway between Sarasota and Ft Myers, on the coast). This is becoming very common.