UFO Sighting in Tulsa, Oklahoma on 2015-05-15 00:00:00 – Changed directions 180 degrees with incredible acceleration

The following exert is an eye witness statement. Please read into it what you will. This has been reported to mufon who I am sure are investigating:

Myself and a friend observed what appeared initially to be a shooting star or a satellite. it traveled from west to east, from the horizon, until it was overhead. at that point, the object made a sharp 90 degree turn to the north, and then made another sharp turn back to the west. at that point, the object accelerated at probably 5 times the speed it was initially traveling. the whole event lasted maybe 10 seconds. i’m certain it wasn’t a plane, helicopter, or a drone.