* Astronomy

Orbital elements:
2011 FK1                                                 Earth MOID = 0.0714 AU
Epoch 2011 Mar. 20.0 TT = JDT 2455640.5                 MPC
M 223.67204              (2000.0)            P               Q
n   1.10985972     Peri.  329.82188     +0.86227604     +0.50643755
a   0.9238979      Node   359.74451     -0.40682981     +0.69147954
e   0.2222862      Incl.   13.21240     -0.30161156     +0.51514761
P   0.89           H   23.6           G   0.15
From 26 observations 2011 Mar. 25.

MPEC 2011 - F26

The 51 - 110 metre wide asteroid 2011 FK1 will make a close pass (32.9 lunar distances, 0.0846 AU), travelling at 8.27 km/second, to the Earth-Moon system on the 28th March, 2011 @ 00:31 UT ±03:28.

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