* Astronomy

Orbital elements:
2013 HT15                                           PHA, Earth MOID = 0.0267 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 279.83330              (2000.0)            P               Q
n   0.85204651     Peri.  315.45562     +0.93494174     +0.35418710
a   1.1019465      Node    23.82430     -0.30940705     +0.84269512
e   0.4254593      Incl.    2.96122     -0.17364108     +0.40548296
P   1.16           H   21.6           G   0.15           U   8

MPEC 2013 - H44

Key to Orbital elements

The 120 - 270 metre wide asteroid 2013 HT15 will make a close pass (17.4 lunar distances, 0.0448 AU), travelling at 12.33 km/second, to the Earth-Moon system on the 16th May, 2013 @ 17:44 UT ±00:37. 

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