The 46 - 100 metre wide asteroid 2014 ST143 will make a close pass (53.3 lunar distances, 0.1369 AU) travelling at 6.61 km/second, to the Earth-Moon system on the 22nd January 2015 @ 21:19 UT ±2 days 06:04.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
