large metallic perfect disk (goldish)

On may 26, 1979 I took a passenger flight from Washington DC to Daytona FL.
After arriving at the airport I walked to the mall for a half an hour. Then started to walk  in direction of Daytona Beach. I looked over my left shoulder and saw a large solid heavy  disc object at approx 2000 ft.alt. flying south about 9:30 o’clock.  My perceptions were  stunned by how clear and sharp I saw it and how I (knew) it was something else, not of  earth.  I thought that strongly. I had chance to check every perspective as two 727 aircraft  passed underneath going opposite directions, the disc flew steady almost directly  overhead and there was not a cloud in the sky.  Of course I was thinking everything  you can think, everything I ever thought about astronomy and physics having studied  those subjects.  The object continued across the sky for about one and a half minutes  then it started to descend  to the horizon.  Last sites were of a telephone wire that blocked  part, then the disk left view. (from the curvature of the earth).  It is the most amazing  thing I’ve ever seen. I think many other people must have witnessed it.  That night I  watched TV.  There were no reports of it.  Contact me if you find anyone else that  witnessed it.