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Post Info TOPIC: Asteroid 2008 YV32
Blobrana


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RE: Asteroid 2008 YV32
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2008YV32 - impactor table 
Object: 2008YV32  

     date         MJD       sigma sigimp   dist ±   width    stretch    p_RE    exp. en.    PS  
   YYYY/MM                                 (RE)       (RE)      RE/sig               MT           
--------------------------------------------------------------------------------------------------
2085/01/09.850  82599.850   1.506 0.000    0.71 ±    0.000  9.84E+05  4.19E-07  8.37E-08  -7.30
2085/01/09.865  82599.865   1.633 0.000    0.76 ±    0.000  1.35E+06  2.22E-07  4.44E-08  -7.57
2086/01/09.595  82964.595   0.882 0.000    0.64 ±    0.000  7.57E+09  1.06E-10  2.10E-11 -10.90
2088/01/10.257  83695.257  -1.978 0.000    1.18 ±    0.000  1.51E+06  8.96E-08  1.73E-08  -7.99
2090/01/09.722  84425.722  -1.948 0.000    0.48 ±    0.000  1.17E+06  1.60E-07  3.08E-08  -7.75


Based on   45 optical observations (of which   0 are rejected as outliers)
from 2008/12/31.221 to 2009/01/09.089.
Source

2008 YV32
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -6.80
Palermo Scale (cumulative) -6.14
Impact Probability (cumulative) 7.0e-06
Number of Potential Impacts 11
Vimpact 14.19 km/s
Vinfinity 8.79 km/s
H 26.4
Diameter 0.018 km
Mass 8.2e+06 kg
Energy 2.0e-01 MT
all above are mean values
weighted by impact probability
Analysis based on
45 observations spanning 8.8674 days
(2008-Dec-31.22029 to 2009-Jan-09.087737)

Source

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Blobrana


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Posts: 131433
Date:
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2008YV32 - impactor table 
Object: 2008YV32  

     date         MJD       sigma sigimp   dist ±   width    stretch    p_RE    exp. en.    PS  
   YYYY/MM                                 (RE)       (RE)      RE/sig               MT           
--------------------------------------------------------------------------------------------------
2069/01/09.149  76755.149  -2.240 0.000    0.23 ±    0.000  1.40E+08  7.46E-10  1.50E-10  -9.94
2072/01/10.544  77851.544   2.698 0.000    1.58 ±    0.000  2.81E+06  1.18E-08  2.48E-09  -8.75
2085/01/09.853  82599.853   1.130 0.000    1.01 ±    0.000  1.01E+06  6.68E-07  1.39E-07  -7.08
2085/01/09.859  82599.859   1.254 0.000    1.46 ±    0.000  1.39E+06  3.73E-07  7.77E-08  -7.33
2088/01/10.257  83695.257  -2.254 0.000    1.20 ±    0.000  1.55E+06  4.84E-08  9.72E-09  -8.25

Based on   36 optical observations (of which   0 are rejected as outliers)
from 2008/12/31.221 to 2009/01/06.972.
Source

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Orbital elements:
2008 YV32                                                Earth MOID = 0.0020 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
M 320.10985              (2000.0)            P               Q
n   0.52564993     Peri.   40.10578     -0.90478340     -0.42553887
a   1.5205649      Node   114.70188     +0.38582579     -0.83580468
e   0.4118576      Incl.    1.06225     +0.18029270     -0.34691095
P   1.88           H   26.1           G   0.15           U   7
MPEC 2009 -A08

The 25 metre wide asteroid, 2008 YV32, will pass 2.7  lunar distances from the Earth-Moon system  on the 9th January, 2009.   

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