* Astronomy

Orbital elements:
2011 PO1                                            PHA, Earth MOID = 0.0402 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 353.03082              (2000.0)            P               Q
n   0.24622611     Peri.  166.19401     +0.95511704     -0.29177272
a   2.5210414      Node   210.91885     +0.26145162     +0.91154184
e   0.6425549      Incl.    5.71730     +0.13926411     +0.28975880
P   4.00           H   21.0           G   0.15           U   7

MPEC 2011 - P29

The 190 - 420 metre wide asteroid 2011 PO1 will make a close pass (42.0 lunar distances, 0.1079 AU), travelling at 14.19 km/second, to the Earth-Moon system on the 21st August, 2011 @ 06:43 UT ±00:11.

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