The 29 - 65 metre wide asteroid 2015 FP33 will make a close pass (18.9 LD, 0.0485 AU) travelling at 27.63 km/second, to the Earth-Moon system on the 26th March 2015 @ 06:12 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).