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Post Info TOPIC: Asteroid 2009 SH1


L

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RE: Asteroid 2009 SH1
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2009 SH1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -8.62
Palermo Scale (cumulative) -8.35
Impact Probability (cumulative) 1.3e-06
Number of Potential Impacts 36
Vimpact 12.95 km/s
Vinfinity 6.58 km/s
H 29.5
Diameter 0.004 km
Mass 1.1e+05 kg
Energy 2.1e-03 MT
all above are mean values
weighted by impact probability
Analysis based on
11 observations spanning .17911 days
(2009-Sep-18.21141 to 2009-Sep-18.39052)



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L

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Orbital elements:
2009 SH1 Earth MOID = 0.0035 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 333.21946 (2000.0) P Q
n 0.77125346 Peri. 292.50577 +0.30329203 +0.95288695
a 1.1776185 Node 355.14297 -0.85349352 +0.26954244
e 0.2356748 Incl. 3.05784 -0.42374847 +0.13911624
P 1.28 H 29.4 G 0.15 U 9

MPEC 2009 - S38


The 3.5 - 8 metre wide asteroid 2009 SH1 made a close pass (2.4 Lunar Distances, 0.0061 AU), travelling at 7.13 km/s, to the Earth-Moon system on the 14th September, 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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