The 120 - 270 metre wide asteroid 2014 QA433 made a close pass (57.2 lunar distances, 0.1469 AU), travelling at 18.88 km/second, to the Earth-Moon system on the 1st September 2014 @ 10:24 UT ±00:03.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
