The 48 - 110 metre wide asteroid 2015 BQ509 will make a close pass (51.3 lunar distances, 0.1319 AU) travelling at 8.17 km/second, to the Earth-Moon system on the 5th February 2015 @ 17:11 UT ±01:15.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
