The 150 - 340 metre wide asteroid 2018 LJ will make a close pass (53.9 lunar distances, 0.13874 AU), travelling at 28.84 km/second, to the Earth on the 7th June 2018 @ 16:00 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).