The 200 - 460 metre wide asteroid 2018 HV2 will make a close pass (33.2 lunar distances, 0.08550 AU), travelling at 25.46 km/second, to the Earth on the 19th May 2018 @ 01:25 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).