The 22 - 50 metre wide asteroid 2015 SU will make a close pass (14.8 LD, 0.0380 AU) travelling at 8.93 km/second, to the Earth-Moon system on the 23rd September 2015 @ 09:44 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).
