The 280 - 620 metre wide asteroid 2014 HE3 will make a close pass (49.0 lunar distances, 0.1260 AU), travelling at 12.19 km/second, to the Earth-Moon system on the 27th August 2014 @ 01:21 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
