spherical egg shaped bright green-stationary then lightning fast...twice!

My sighting coincides with entry for 8-12-93,ft.lauderdale, sighting. I too witnessed the same,I just didnt know where to report this until now!
 I had a witness at the time of the sighting, and it was august of 93 just a few miles S. of Ft.Laud. It was spherical-egg shaped, bright green, and hovered a few hundred feet directly above us and remained stationary for 2 min.
During the 2 min.we moved our heads from side to side to be sure our eyes werent playing tricks on us,and it seemed to move in an opposite direction each time I leaned forward or back .Then, after our utter disbelief about what we were seeing, it shot out lightning fast to the west horizon, then hovered there for another 2 min. Then it did a zig zag left and right, and then shot back directly over us again!  I started to cry and had chills on the back of my neck with my hands covering my mouth in total shock. It hovered stationary again in the exact spot it was before,then shot out again to the west horizon,moved up then down this time, then disappeared.