The 33 - 75 metre wide asteroid 2013 SL20 will make a close pass (17.5 lunar distances, 0.0449 AU), travelling at 10.81 km/second, to the Earth-Moon system on the 15th October, 2013 @ 12:34 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).
