The 44 - 99 metre wide asteroid 2015 BC515 made a close pass (69.9 lunar distances, 0.1797 AU) travelling at 5.98 km/second, to the Earth-Moon system on the 6th February 2015 @ 14:27 UT ±00:36.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
