According to Wikipedia, it has a diameter of roughly 2 km (1.2 miles).
Yawn!!
Regards,
From the article:
“While asteroid 1998 OR2 poses no threat to our planet at this time, NASA has classified it as a “potentially hazardous” asteroid due to its large size and the fact that its orbit intersects with Earth’s orbit around the sun. Astronomers have estimated that asteroid 1998 OR2 has a diameter of approximately 1.2 miles (2 km).”