* Astronomy

Orbital elements:
2011 UG20                                           PHA, Earth MOID = 0.0057 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 266.69692              (2000.0)            P               Q
n   0.82845749     Peri.  304.86302     -0.85301786     -0.50244472
a   1.1227659      Node   205.85961     +0.51784264     -0.84846499
e   0.6848773      Incl.   18.87501     -0.06480387     -0.16630232
P   1.19           H   21.2           G   0.15           U   9

MPEC 2011 - U24


The 140 - 320 metre wide asteroid 2011 UG20 will make a close pass (59.5 lunar distances, 0.1530 AU), travelling at 19.45 km/second, to the Earth-Moon system on the 23rd October, 2011 @ 14:50 UT ±00:05.

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