OK, let the speculation begin.

[Spitfire of ATJ]

9. We've come a long way since using candles inside drycleaning bags.

That was a common "UFO" years ago.

None of this explains what I saw though.

I was floating on my back in a pool away from city lights relaxing after a long day when I saw a faint light like a star moving across the sky. After a while I realized it was covering a LOT of the night sky to have been a high flying jet and thought to myself, "Cool! It's got to be a satellite!" which made sense because it was travelling due north which would fit a polar orbit mapping mission like NASA's Landstat. Then I remembered when the family went out to watch the Telstar satellite go over our back yard. It was about then the object I was watching made a perfect 90 degree turn without slowing down as it headed due west....

So there I am, floating in the pool and thinking, ".........okayyyy,.......riiiiiight,........gotcha,.....uh huh....."