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Post Info TOPIC: Asteroid 2009 SQ104
Blobrana


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RE: Asteroid 2009 SQ104
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The 180 - 400 metre wide asteroid 2009 SQ104 will make a close pass (27.8 lunar distances, 0.0714 AU), travelling at 8.16 km/second, to the Earth-Moon system on the 22nd April, 2013 @ 07:26 UT ±00:01. 

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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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Blobrana


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Orbital elements:
2009 SQ104                                          PHA, Earth MOID = 0.0387 AU
Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
M 254.51411              (2000.0)            P               Q
n   0.67750977     Peri.   95.42999     -0.88144110     -0.46866196
a   1.2838837      Node    56.63511     +0.40086107     -0.80782555
e   0.2793439      Incl.    4.01377     +0.24974383     -0.35745467
P   1.45           H   20.8           G   0.15           U   5

MPEC 2012 - S70



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Blobrana


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2009 SQ104
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -7.05
Palermo Scale (cumulative) -6.44
Impact Probability (cumulative) 1.9e-09
Number of Potential Impacts 9
Vimpact 15.04 km/s
Vinfinity 10.11 km/s
H 20.3
Diameter 0.299 km
Mass 3.6e+10 kg
Energy 9.7e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
20 observations spanning 2.0508 days
(2009-Sep-26.33466 to 2009-Sep-28.38543)



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Blobrana


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Posts: 131433
Date:
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2009 SQ104
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.22
Palermo Scale (cumulative) -4.12
Impact Probability (cumulative) 2.2e-07
Number of Potential Impacts 84
Vimpact 13.56 km/s
Vinfinity 7.71 km/s
H 20.7
Diameter 0.245 km
Mass 2.0e+10 kg
Energy 4.5e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
13 observations spanning .95515 days
(2009-Sep-26.33466 to 2009-Sep-27.28981)



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Blobrana


L

Posts: 131433
Date:
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Orbital elements:
2009 SQ104                                          PHA, Earth MOID = 0.0441 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 200.98638              (2000.0)            P               Q
n   0.62534402     Peri.   83.66369     -0.66732695     -0.74258858
a   1.3543265      Node    48.36344     +0.64967728     -0.61777524
e   0.3273305      Incl.    4.36589     +0.36413484     -0.25868119
P   1.58           H   21.1           G   0.15           U   9

MPEC 2009 - S117

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