The 16 - 37 metre wide asteroid 2018 GS3 will make a close pass (8.5 lunar distances, 0.02188 AU), travelling at 19.78 km/second, to the Earth on the 20th April 2018 @ 13:38 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).
