The 10 - 21 metre wide asteroid 2015 HA117 made a close pass (7.2 LD, 0.0185 AU) travelling at 10.91 km/second, to the Earth-Moon system on the 27th April 2015 @ 09:30 UT ±00:01.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
