The 46 - 100 metre wide asteroid 2018 JG2 will make a close pass (18.3 lunar distances, 0.04723 AU), travelling at 6.91 km/second, to the Earth on the 25th May 2018 @ 22:30 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).