The 48 - 110 metre wide asteroid 2018 DY1 will make a close pass (36.37 LD, 0.09344 AU), travelling at 8.75 km/second, to the Earth on the 24th March 2018 @ 20:34 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).