The 47 - 110 metre wide asteroid 2015 HW9 made a close pass (75.3 LD, 0.1934 AU) travelling at 13.46 km/second, to the Earth-Moon system on the 17th April 2015 @ 13:41 UT ±00:56.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
