The 280 - 630 metre wide asteroid 2015 OH made a close pass (55.5 LD, 0.1426 AU) travelling at 8.11 km/second, to the Earth-Moon system on the 16th July 2015 @ 03:01 UT ±00:47.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
