* Astronomy

Orbital elements:
2013 PJ10                                                Earth MOID = 0.0027 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
M 310.96305              (2000.0)            P               Q
n   0.67452053     Peri.  319.67572     +0.04286481     +0.99398024
a   1.2876740      Node   312.52388     -0.87781802     -0.01072004
e   0.2465779      Incl.    7.86311     -0.47707246     +0.10903378
P   1.46           H   24.6           G   0.15           U   6

MPEC 2013 - P39

Key to Orbital elements

The 31 - 70 metre wide asteroid 2013 PJ10 made a close pass (1.0 lunar distances, 0.0025 AU), travelling at 6.94 km/second, to the Earth-Moon system on the 4th August, 2013 @ 02:18 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).