The 11 - 25 metre wide asteroid 2017 HD will make a close pass (3.77 LD, 0.00969 AU), travelling at 12.27 km/second, to the Earth-Moon system on the 22nd April 2017 @ 17:03 UT ±00:02.
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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).
