* Astronomy

Orbital elements:
2010 DZ1                                                 Earth MOID = 0.0290 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 333.77153              (2000.0)            P               Q
n   0.55030565     Peri.  179.89715     -0.87917031     -0.45742455
a   1.4748009      Node   331.64116     +0.43698631     -0.66224854
e   0.3098830      Incl.   16.32336     +0.19000666     -0.59345569
P   1.79           H   25.3           G   0.15           U   7

MPEC 2010 - D55

The 23 - 51 metre wide asteroid 2010 DZ1 will make a close pass (11.3 lunar distances, 0.0291 AU), travelling at 9.78 km/second, to the Earth-Moon system on the 21st February, 2010.

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