The 54 - 120 metre wide asteroid 2015 HW11 made a close pass (20.2 LD, 0.0520 AU) travelling at 9.26 km/second, to the Earth-Moon system on the 22nd April 2015 @ 03:41 UT ±00:05.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
