* Astronomy

Orbital elements:
2012 SJ58                                                Earth MOID = 0.0146 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 315.16107              (2000.0)            P               Q
n   0.72978521     Peri.   83.07753     +0.01939622     -0.99964888
a   1.2218166      Node     5.90193     +0.83393736     +0.00621543
e   0.3468626      Incl.   10.11163     +0.55151814     +0.02575823
P   1.35           H   26.4           G   0.15           U   8

MPEC 2012 - S84

The 14 - 31 metre wide asteroid 2012 SJ58 will make a close pass (5.9 lunar distances, 0.0152 AU), travelling at 10.64 km/second, to the Earth-Moon system on the 3rd October, 2012 @ 05:05 UT ±00:53. 

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