Asteroid 2015 BF511 will make a close pass (0.03003 AU, 11.69 LD) on the 28th February 2018 @ 19:40 UT ±1 day 02:13
The 32 - 71 metre wide asteroid 2015 BF511 will make a close pass (10.7 LD, 0.0275 AU) travelling at 7.10 km/second, to the Earth-Moon system on the 17th February 2015 @ 17:33 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).