* Astronomy

Orbital elements:
2011 SJ189                                               Earth MOID = 0.1548 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 338.80502              (2000.0)            P               Q
n   0.38410218     Peri.    8.10646     +0.85233823     -0.52200498
a   1.8742961      Node    23.44667     +0.47519630     +0.74735266
e   0.3864621      Incl.    4.62716     +0.21842164     +0.41106544
P   2.57           H   22.6           G   0.15           U   7

MPEC 2011 - S101

The 80 - 180 metre wide asteroid 2011 SJ189 will make a close pass (67.7 lunar distances, 0.1739 AU), travelling at 4.04 km/second, to the Earth-Moon system on the 22nd October, 2011 @ 18:06 UT ±15:31.

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