* Astronomy

Orbital elements:
2011 SH189                                               Earth MOID = 0.1079 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 311.18381              (2000.0)            P               Q
n   0.72637796     Peri.  216.80161     +0.76995777     -0.63807415
a   1.2256344      Node   182.86255     +0.60722306     +0.73515732
e   0.1062210      Incl.    5.90646     +0.19607443     +0.22892160
P   1.36           H   24.1           G   0.15           U   7

MPEC 2011 - S100

The 39 - 86 metre wide asteroid 2011 SH189 will make a close pass (44.7 lunar distances, 0.1148 AU), travelling at 3.04 km/second, to the Earth-Moon system on the 18th October, 2011 @ 09:37 UT ±15:21.

See more

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