Earth Impact Effects Program
2021-10-6 · The minimum impact velocity on Earth is 11 km/s. Typical impact velocities are 17 km/s for asteroids and 51 km/s for comets. The maximum Earth impact velocity for objects orbiting the sun is 72 km/s. The impact angle is measured from a plane tangent to the impact surface. This angle is 90 degrees for a vertical impact.