The 120 - 280 metre wide asteroid 2014 SU260 made a close pass (35.2 lunar distances, 0.0903 AU), travelling at 15.34 km/second, to the Earth-Moon system on the 23rd September 2014 @ 18:51 UT ±00:03.
See more
The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
