* Astronomy

Orbital elements:
2011 SO32                                           PHA, Earth MOID = 0.0471 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 318.70641              (2000.0)            P               Q
n   0.43520146     Peri.  243.26518     +0.14003947     -0.98856846
a   1.7245501      Node   198.93504     +0.95858453     +0.14949240
e   0.4766809      Incl.    9.91411     +0.24800131     -0.01960676
P   2.26           H   20.7           G   0.15           U   9

MPEC 2011 - S58

The 190 - 430 metre wide asteroid 2011 SO32 will make a close pass (32.9 lunar distances, 0.0844 AU), travelling at 13.13 km/second, to the Earth-Moon system on the 20th October, 2011 @ 06:47 UT ±08:57.

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