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Post Info TOPIC: Asteroid 2008 XK


L

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RE: Asteroid 2008 XK
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The 15metre wide asteroid,  2008 XK, is to pass 1.7 lunar distances from the Earth-moon system on the 6th December, 2008.

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2008XK - impactor table
Object: 2008XK    

date MJD sigma sigimp dist ± width stretch p_RE exp. en. PS
YYYY/MM (RE) (RE) RE/sig MT
--------------------------------------------------------------------------------------------------
2034/11/15.653 64281.653 2.507 0.196 9.57 ± 31.800 3.01E+05 5.08E-09 2.68E-10 -9.21
2042/11/07.219 67195.219 2.385 0.000 1.18 ± 68.781 1.55E+06 5.37E-09 2.64E-10 -9.32
2047/11/07.860 69021.860 2.394 0.000 2.32 ± 83.457 1.58E+06 4.00E-09 1.98E-10 -9.51
2051/11/17.834 70492.834 2.570 0.000 2.15 ± 66.452 3.95E+05 6.15E-09 3.36E-10 -9.33
2052/11/07.490 70848.490 2.401 0.000 4.28 ± 118.673 7.89E+05 5.27E-09 2.64E-10 -9.44
2054/11/12.589 71583.589 2.458 0.000 3.51 ± 41.395 3.36E+05 2.35E-08 1.20E-09 -8.80
2055/11/16.877 71952.877 2.527 0.000 2.89 ± 60.944 2.24E+06 1.55E-09 8.26E-11 -9.98
2057/11/16.739 72683.739 2.570 0.000 1.61 ± 53.870 7.71E+07 3.92E-11 2.14E-12 -11.58
2060/11/15.740 73778.740 2.527 0.000 1.67 ± 68.769 3.00E+07 1.03E-10 5.46E-12 -11.20
2063/12/07.450 74895.450 -0.048 0.271 4.00 ± 9.842 7.71E+06 6.65E-10 5.49E-11 -10.26
2066/11/23.859 75977.859 -0.176 0.000 0.47 ± 31.356 5.62E+06 4.17E-09 4.35E-10 -9.41

Based on 12 optical observations (of which 0 are rejected as outliers)
from 2008/12/02.281 to 2008/12/02.368.

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2008 XK
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -7.71
Palermo Scale (cumulative) -6.81
Impact Probability (cumulative) 8.7e-07
Number of Potential Impacts 174
Vimpact 13.71 km/s
Vinfinity 7.09 km/s
H 27.2
Diameter 0.012 km
Mass 2.7e+06 kg
Energy 6.0e-02 MT
all above are mean values
weighted by impact probability
Analysis based on
12 observations spanning .08663 days
(200smile.gifec-02.28019 to 200smile.gifec-02.36682)

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