According to NASA studies this asteroid was highly dangerous although its impact with the earth was null, its approximate size is between 800 and 1100 meters, and it travels with a speed of 120000 km / h.
The asteroid happened to 4.2 million kilometers of the earth for which I do not generate any alarm, this asteroid was discovered in the year 2002.
These asteroids also have orbits as well as the earth for this reason presumes that asteroid will again pass very close to the earth but this time 3.8 million km in the year 2087
Concerning this Paul Chodas, who is the coordinator of the Center for the Study of Objects near the Earth, reports that "we have been watching this asteroid for more than 14 years and we know its orbit in detail." Our calculations indicate that this asteroid will not collide the earth in the next 100 years "
reference
https://www.nasa.gov/