* Astronomy

Orbital elements:
2013 HK11                                                Earth MOID = 0.1924 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 347.84995              (2000.0)            P               Q
n   0.30185857     Peri.  281.72889     +0.95214231     +0.09085346
a   2.2009003      Node    73.59000     +0.05564455     +0.88732358
e   0.9368627      Incl.   17.71204     -0.30054734     +0.45210896
P   3.27           H   20.7           G   0.15           U   9

MPEC 2013 - H28

Key to Orbital elements

The 190 - 430 metre wide asteroid 2013 HK11 will make a close pass (76.3 lunar distances, 0.1961 AU), travelling at 38.89 km/second, to the Earth-Moon system on the 24th April, 2013 @ 22:27 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).