The 290 - 650 metre wide asteroid 2015 TX143 will make a close pass (77.8 lunar distances, 0.19994 AU), travelling at 20.41 km/second, to the Earth on the 18th April 2018 @ 08:43 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).
