The 25 - 55 metre wide asteroid 2018 KP1 will make a close pass (43.7 lunar distances, 0.11245 AU), travelling at 2.98 km/second, to the Earth on the 2nd June 2018 @ 01:56 UT ±02:57.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).