* Astronomy

Orbital elements:
2009 KR21                                                Earth MOID = 0.0012 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 349.32711              (2000.0)            P               Q
n   0.39759184     Peri.  243.07155     +0.67123222     +0.74025179
a   1.8316581      Node    69.14511     -0.66467635     +0.62401673
e   0.5486738      Incl.    2.35510     -0.32810463     +0.25026068
P   2.48           H   26.4           G   0.15           U   7

MPEC 2009 - K78

The 13 - 29 metre wide asteroid 2009 KR21 will make a close pass (0.7 Lunar Distances, 0.0019 AU), travelling at 12.84 km/s, to the Earth on the 1st June, 2009.

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