The 77 - 170 metre wide asteroid 2014 RE11 made a close pass (31.6 lunar distances, 0.0812 AU), travelling at 20.75 km/second, to the Earth-Moon system on the 2nd September 2014 @ 12:45 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).
