May 15, will fly by the Earth asteroid in near distance for the last 300 years for celestial bodies of this type and size. The asteroid will approach our planet at a distance of 230 thousand kilometers. This is about half the distance from Earth to the moon. The speed of the asteroid 2010 WC9 — about 46 thousand kilometers per hour.
2010 WC9 considered the “asteroid-Ghost”. He had previously been lost by astronomers. For the first time experts of the Observatory of the U.S. state of Arizona was on its way in Nov 30, 2010. And in December of the same year he disappeared from the view of scientists. Again to detect the returned asteroid was only 8 may 2018. Astronomers believe that the probability of collision of asteroid with the Earth is minimal.
The diameter of the asteroid — from 60 to 130 meters. For comparison, the Chelyabinsk meteorite before entering the atmosphere of the Earth had a diameter of about 20 meters. He fell in the vicinity of the Russian city of Chelyabinsk on 15 February 2013. Was destroyed several buildings, damaged many buildings. Injured about two thousand people.