* Astronomy

Orbital elements:
2013 JR7                                                 Earth MOID = 0.0232 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 316.28458              (2000.0)            P               Q
n   0.69731653     Peri.  230.65200     +0.06148222     +0.99205068
a   1.2594553      Node    43.26592     -0.85938788     +0.10856200
e   0.2298445      Incl.    9.21836     -0.50761442     -0.06363765
P   1.41           H   26.8           G   0.15           U   7

MPEC 2013 - J30

Key to Orbital elements

The 11 - 24 metre wide asteroid 2013 JR7 made a close pass (9.1 lunar distances, 0.0234 AU), travelling at 7.13 km/second, to the Earth-Moon system on the 10th May, 2013 @ 00:39 UT ±00:10. 

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