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Post Info TOPIC: Asteroid 2011 AL1


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Asteroid 2011 AL1
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The 400 - 900 metre wide asteroid 2011 AL1 made a close pass (63.4 lunar distances, 0.1629 AU), travelling at 24.56 km/second, to the Earth-Moon system on the 31st December, 2010 @ 22:45 UT ±01:59.

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


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Orbital elements:
2011 AL1 Earth MOID = 0.0634 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 MPC
M 21.81193 (2000.0) P Q
n 0.32281819 Peri. 318.69437 +0.45258299 -0.65170495
a 2.1045733 Node 95.17479 +0.89009955 +0.37132183
e 0.5436229 Incl. 37.67171 -0.05377201 +0.66136280
P 3.05 H 19.1 G 0.15 U 8

MPEC 2011 - A11


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