The 48 - 110 metre wide asteroid 2015 FR33 made a close pass (74.7 LD, 0.1919 AU) travelling at 11.92 km/second, to the Earth-Moon system on the 20th March 2015 @ 19:54 UT ±00:19.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).