* Astronomy

Orbital elements:
2011 UB190                                               Earth MOID = 0.0661 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M   2.10042              (2000.0)            P               Q
n   0.69793197     Peri.  107.14743     +0.80489249     +0.57247727
a   1.2587147      Node   218.34052     -0.59339890     +0.77871218
e   0.2645146      Incl.   14.58997     +0.00508167     +0.25666536
P   1.41           H   24.2           G   0.15           U   7

MPEC 2011 - U98

The 40 - 90 metre wide asteroid 2011 UB190 made a close pass ( 0.1039 AU), travelling at 8.89 km/second, to the Earth-Moon system on the 19th October, 2011 @ 21:55 UT ±00:15.

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