Asteroid (267494) 2002 JB9 should reach magnitude 14.1, at 14:45 GMT, 6th June, 2011.
The 2000 - 4400 metre wide asteroid 2002 JB9 will make a close pass (71.5 lunar distances, 0.1837 AU), travelling at 29.25 km/second, to the Earth-Moon system on the 11th June, 2011 @ 14:02 UT ±00:01. See moreThe Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).