The 42 - 95 metre wide asteroid 2014 WY4 made a close pass (18.3 lunar distances, 0.0470 AU) travelling at 8.97 km/second, to the Earth-Moon system on the 19th November 2014 @ 15:36 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
