Saucer very low to ground

I was gazing out of open window facing the west. I noticed a bright object moving east toward me. Intercontinental Airport is directly to the east of our house, and I was used to the flight patterns of the airplanes and it was not in an approach position. It was very slow moving, getting brighter and larger as it approached. I awaken my younger sister (16 at that time) and pulled her to the window. The object was a saucer shaped object with lights surrounding it (amber and green), with no sound at all. The window was open and it was a very still night. It moved directly over our house, was bigger than 2 houses put together and was very low in the sky. I ran out of the back door and stood on the steps and watched it moving directly toward the FAA on Kennedy Blvd. It was the slowest moving airborne object I have ever seen. I went back inside to call the FAA to notify them, dropped the phone and awakened my Father who would not go outside to see if he could see it. He sent me to bed... My younger sister and I have never stopped talking about this... Either of us could be notified..
Date is approximate, we assume.  PD