The 61 - 140 metre wide asteroid 2003 PN5 will make a close pass (53.5 LD, 0.1374 AU) travelling at 9.72 km/second, to the Earth-Moon system on the 7th August 2015 @ 04:56 UT ±10:37.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).