While taking the dog outside around 10:15 at night, I look up at the sky toward the East and see 6 orange/red/yellow circle orbs about 150-200 feet from the ground, Traveling north about 30mph. Same trajectory in a single file line. No sound! After 30-45 seconds, they disappear. At first thought, stealth choppers, or maybe floating lanterns, but these were too precise to be neither. No flashing beacons.