The 1300 - 2900 metre wide asteroid 1998 UO1 will make a close pass (60.1 lunar distances, 0.1545 AU), travelling at 32.90 km/second, to the Earth-Moon system on the 4th October, 2012 @ 13:41 UT ±00:01.
The 1300 - 2900 metre wide asteroid 1998 UO1 will make a close pass (32.1 lunar distances, 0.0824 AU), travelling at 30.48 km/second, to the Earth-Moon system on the 1st October, 2010. See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
Asteroid (137032) 1998 UO1 Minimum distance: 0.08243 AU Date of closest approach: 2010-10-01 02:24:00 UT Date of maximum brightness: 2010-10-03 07:00:00 UT Maximum brightness at closest approach: 14.6 V. Maximum angular velocity: 30.83"/min maximum date and time the angular velocity: 2010-10-01 08:00:00 UT Absolute brightness: 16.58