The 140 - 310 metre wide asteroid 2014 SQ143 will make a close pass (43.5 lunar distances, 0.1119 AU) travelling at 9.16 km/second, to the Earth-Moon system on the 29th January 2015 @ 20:26 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).
