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Post Info TOPIC: Asteroid 2011 SA121
Blobrana


L

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RE: Asteroid 2011 SA121
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The 28 - 62 metre wide asteroid 2011 SA121 made a close pass (29.4 lunar distances, 0.0756 AU), travelling at 12.28 km/second, to the Earth-Moon system on the 27th September, 2011 @ 01:48 UT ±00:22.

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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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Blobrana


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Orbital elements:
2011 SA121                                               Earth MOID = 0.0665 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 358.74450              (2000.0)            P               Q
n   0.57177342     Peri.  147.39587     +0.90323962     +0.42612154
a   1.4376508      Node   187.90019     -0.42798464     +0.90315048
e   0.2798412      Incl.   21.68174     +0.03142203     +0.05234151
P   1.72           H   24.9           G   0.15           U   8

MPEC 2011 - S90



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