The 12 - 26 metre wide asteroid 2015 KC57 will make a close pass (26.4 LD, 0.0679 AU) travelling at 7.40 km/second, to the Earth-Moon system on the 20th June 2015 @ 04:23 UT ±01:27.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
