The 39 - 88 metre wide asteroid 2015 DN155 made a close pass (47.3 LD, 0.1217 AU) travelling at 6.98 km/second, to the Earth-Moon system on the 19th February 2015 @ 07:03 UT ±02:09.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).