The 20 - 45 metre wide asteroid 2018 FL2 will make a close pass (9.00 LD, 0.0231 AU), travelling at 17.7 km/second, to the Earth on the 23rd March 2018 @ 10:01 UT ±00:01.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).