* Astronomy

The 47 - 110 metre wide asteroid 2013 YE48 will make a close pass (25.9 lunar distances, 0.0665 AU), travelling at 24.43 km/second, to the Earth-Moon system on the 5th January 2014 @ 08:30 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).