The 62 - 140 metre wide asteroid 2015 CR made a close pass (75.3 lunar distances, 0.1935 AU) travelling at 6.74 km/second, to the Earth-Moon system on the 11th February 2015 @ 04:52 UT ±18:52.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).