* Astronomy

Orbital elements:
2012 LJ2                                                 Earth MOID = 0.1531 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
M 348.67187              (2000.0)            P               Q
n   0.40562406     Peri.   94.84758     -0.82456151     +0.01279442
a   1.8073971      Node    86.73632     -0.25907167     -0.89731072
e   0.5390800      Incl.   34.50975     +0.50297136     -0.44121399
P   2.43           H   21.6           G   0.15           U   8

MPEC 2012 - L31

The 130 - 280 metre wide asteroid 2012 LJ2 made a close pass (59.8 lunar distances, 0.1537 AU), travelling at 21.67 km/second, to the Earth-Moon system on the 8th June, 2012 @ 21:15 UT ±00:10. 

See more

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