The 26 - 58 metre wide asteroid 2014 QD3 will make a close pass (16.7 lunar distances, 0.0428 AU), travelling at 9.14 km/second, to the Earth-Moon system on the 1st September 2014 @ 01:19 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).
