* Astronomy

Orbital elements:
2010 AB3                                                 Earth MOID = 0.0668 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M   3.87699              (2000.0)            P               Q
n   0.23313932     Peri.  144.17619     +0.16407402     -0.98583946
a   2.6145224      Node   296.35758     +0.89580839     +0.16361209
e   0.5994912      Incl.    2.21587     +0.41304605     +0.03676479
P   4.23           H   23.2           G   0.15           U   8

MPEC 2010 - A40

The 63 - 140 metre wide asteroid 2010 AB3 made a close pass (42.4 lunar distances, 0.1088 AU), travelling at 8.70 km/second, to the Earth-Moon system on the 30th December, 2009.

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