The 67 - 150 metre wide asteroid 2015 CB made a close pass (21.0 lunar distances, 0.0539 AU) travelling at 9.91 km/second, to the Earth-Moon system on the 2nd February 2015 @ 05:11 UT ±00:04.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
