1. In backyard letting my dogs go to the bathroom.2. Something kept telling me to watch the sky and I noticed movement3. Thought it was an airplane at first.4. Elongated and white with no descriptive markings that I could see. There was a dark spot in the middle that I first assumed were the wings of an airplane. It was flying flying north to south and at some point the part that I thought were wings reflected sunlight. It was flying straight and parallel to the ground.5. My thoughts were,"Again? This is the third sighting I've had in a month after years of seeing nothing! Is something about to happen!? Just about every two weeks I've had a sighting?"6. Flew out of my line of sight.