The 7 - 17 metre wide asteroid 2015 SV6 made a close pass (2.3 LD, 0.0059 AU) travelling at 17.96 km/second, to the Earth-Moon system on the 25h September 2015 @ 13:24 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).