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Post Info TOPIC: Asteroid 2009 HU2
Blobrana


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Asteroid 2009 HU2
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Orbital elements:
2009 HU2                                                 Earth MOID = 0.0873 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M 191.53938              (2000.0)            P               Q
n   0.48660473     Peri.  166.43072     +0.98876413     +0.14707847
a   1.6008544      Node   185.33235     -0.14922481     +0.98168397
e   0.3220352      Incl.   16.70293     +0.00880027     +0.12109709
P   2.03           H   18.4           G   0.15           U   3

MPEC 2011 - C71

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Blobrana


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Impactor Table:

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-- Edited by Blobrana on Tuesday 21st of April 2009 07:34:47 PM

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Blobrana


L

Posts: 131433
Date:
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Orbital elements:
2009 HU2                                            PHA, Earth MOID = 0.0436 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 261.45619              (2000.0)            P               Q
n   0.47167353     Peri.  165.79248     +0.98885109     +0.14469749
a   1.6344628      Node   186.21692     -0.14710963     +0.98587107
e   0.3644379      Incl.   18.94531     +0.02307110     +0.08438523
P   2.09           H   18.2           G   0.15           U   9

MPEC 2009 - H22

2009 HU2
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.14
Palermo Scale (cumulative) -4.07
Impact Probability (cumulative) 3.8e-08
Number of Potential Impacts 23
Vimpact 16.75 km/s
Vinfinity 12.51 km/s
H 18.1
Diameter 0.796 km
Mass 6.9e+11 kg
Energy 2.3e+04 MT
all above are mean values
weighted by impact probability
Analysis based on
28 observations spanning 1.1594 days
(2009-Apr-19.13168 to 2009-Apr-20.29109)

Source

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