The 64 - 140 metre wide asteroid 2018 HH2 will make a close pass (24.2 lunar distances, 0.06238 AU), travelling at 10.84 km/second, to the Earth on the 28th April 2018 @ 09:40 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).