The 38 - 85 metre wide asteroid 2017 ED3 will make a close pass (35.1 LD, 0.0903 AU), travelling at 4.58 km/second, to the Earth-Moon system on the 27th March 2017 @ 00:05 UT ±00:02.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).