The 20 - 44 metre wide asteroid 2015 DK200 will make a close pass of the Earth (0.0180 AU) at 06:46 UT, 10th March 2018.
The 20 - 44 metre wide asteroid 2015 DK200 will make a close pass (6.9 LD, 0.0177 AU) travelling at 8.61 km/second, to the Earth-Moon system on the 8th March 2015 @ 00:22 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).