* Astronomy

Orbital elements:
2013 HP11                                                Earth MOID = 0.0307 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 352.00503              (2000.0)            P               Q
n   0.76576308     Peri.    8.46937     -0.79368625     +0.60729310
a   1.1832407      Node   209.01729     -0.56232436     -0.75465379
e   0.1248166      Incl.    4.19187     -0.23206345     -0.24838024
P   1.29           H   25.5           G   0.15           U   6

MPEC 2013 - H32

Key to Orbital elements

The 21 - 47 metre wide asteroid 2013 HP11 will make a close pass (12.8 lunar distances, 0.0328 AU), travelling at 2.65 km/second, to the Earth-Moon system on the 27th April, 2013 @ 11:15 UT ±00:17. 

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The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).