The 11 - 25 metre wide asteroid 2014 HM4 made a close pass (1.6 lunar distances, 0.0042 AU), travelling at 16.97 km/second, to the Earth-Moon system on the 25th April 2014 @ 19:58 UT ±13:42.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
