The satellites, both of which had a mass in excess of 450 kilograms, and were traveling at approximately 17,500 miles per hour (28,150 km/hour), collided 491 miles (790 km) above the earth.
両方とも450キログラムを超える質量をもつ衛星は、約17,500毎時マイル（時速28,150km）で移動し、地球の上空491マイル（790km）で衝突した。