The 2 - 4 metre wide asteroid 2017 FN1 made a close pass (0.2 LD, 0.0004 AU), travelling at 18.27 km/second, to the Earth-Moon system on the 20th March 2017 @ 21:02 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).
