* Astronomy

Orbital elements:
2013 HT14                                                Earth MOID = 0.0021 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M  15.18756              (2000.0)            P               Q
n   0.32590013     Peri.   87.57949     -0.47302976     -0.87955314
a   2.0912841      Node    30.81892     +0.76334628     -0.43820269
e   0.7190208      Incl.    5.74393     +0.43993784     -0.18537714
P   3.02           H   26.2           G   0.15           U   7

MPEC 2013 - H39

Key to Orbital elements

The 15 - 33 metre wide asteroid 2013 HT14 made a close pass (2.2 lunar distances, 0.0057 AU), travelling at 21.13 km/second, to the Earth-Moon system on the 18th April, 2013 @ 04:57 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).