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Post Info TOPIC: Asteroid 2009 JL2


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Asteroid 2009 JL2
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The 17 - 38 metre wide asteroid 2009 JL2 will make a close pass (0.7 Lunar Distances, 0.0018 AU), travelling at 12.93 km/s, to the Earth-Moon system on the 13th May, 2009.

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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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2009 JL2
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.92
Palermo Scale (cumulative) -5.60
Impact Probability (cumulative) 8.6e-06
Number of Potential Impacts 4
Vimpact 17.00 km/s
Vinfinity 12.83 km/s
H 26.0
Diameter 0.022 km
Mass 1.4e+07 kg
Energy 4.7e-01 MT
all above are mean values
weighted by impact probability
Analysis based on
52 observations spanning 1.2422 days
(2009-May-12.38588 to 2009-May-13.62807)

Source

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Orbital elements:
2009 JL2 Earth MOID = 0.0009 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 5.70229 (2000.0) P Q
n 0.39007332 Peri. 204.76032 -0.22760197 +0.94232706
a 1.8551195 Node 53.03360 -0.83440571 -0.05883021
e 0.4719058 Incl. 17.88623 -0.50196061 -0.32948249
P 2.53 H 26.0 G 0.15 U 7

MPEC 2009 - J55


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Posts: 131433
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Orbital elements:
2009 JL2 Earth MOID = 0.0009 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 5.78138 (2000.0) P Q
n 0.39700374 Peri. 204.76791 -0.22719629 +0.94293360
a 1.8334665 Node 53.03458 -0.83500950 -0.05998912
e 0.4655242 Incl. 17.73823 -0.50113968 -0.32753249
P 2.48 H 26.1 G 0.15 U 6

MPEC 2009 - J53


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