The 29 - 65 metre wide asteroid 2017 LF will make a close pass (33.0 lunar distances, 0.08479 AU), travelling at 9.08 km/second, to the Earth on the 26th May 2018 @ 04:45 UT ±00:37.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).