* Astronomy

The 5 - 11 metre wide asteroid 2013 TR12 made a close pass (0.6 lunar distances, 0.0014 AU), travelling at 14.50 km/second, to the Earth-Moon system on the 4th October 2013 @ 09:52 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).