* Astronomy

Orbital elements:
2011 GZ54                                                Earth MOID = 0.1423 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M 297.02204              (2000.0)            P               Q
n   0.63970068     Peri.   15.53367     -0.65606355     +0.74855075
a   1.3339867      Node   213.63686     -0.70961142     -0.65522853
e   0.1405212      Incl.   10.00009     -0.25696741     -0.10172191
P   1.54           H   21.9           G   0.15           U   7

MPEC 2011 - G52

The 110 - 250 metre wide asteroid 2011 GZ54 will make a close pass (65.5 lunar distances, 0.1684 AU), travelling at 5.16 km/second, to the Earth-Moon system on the 23rd April, 2011 @ 05:23 UT ±22:52.

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