The 62 - 140 metre wide asteroid 2014 ML55 will make a close pass (69.6 lunar distances, 0.1789 AU), travelling at 5.48 km/second, to the Earth-Moon system on the 19th July 2014 @ 23:30 UT ±01:07.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).