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Post Info TOPIC: Asteroid 2009 SG2
Blobrana


L

Posts: 131433
Date:
Asteroid (429094) 2009 SG2
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The 250 - 570 metre wide asteroid (429094) 2009 SG2 will make a close pass (44.4 LD, 0.1141 AU) travelling at 15.81 km/second, to the Earth-Moon system on the 28th March 2015 @ 18:07 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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RE: Asteroid 2009 SG2
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Orbital elements:
2009 SG2                                            PHA, Earth MOID = 0.0341 AU
Epoch 2013 Nov. 4.0 TT = JDT 2456600.5                  MPC
M 245.95282              (2000.0)            P               Q
n   0.83016529     Peri.  252.91194     -0.15411857     +0.98561670
a   1.1212256      Node     9.10779     -0.65457271     -0.04928585
e   0.1702377      Incl.   25.97710     -0.74012298     -0.16164971
P   1.19           H   20.1           G   0.15           U   2

MPEC 2014 - D03



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Blobrana


L

Posts: 131433
Date:
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Orbital elements:
2009 SG2                                            PHA, Earth MOID = 0.0306 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 358.56252              (2000.0)            P               Q
n   0.83742837     Peri.  251.92803     -0.17092748     +0.98290581
a   1.1147332      Node     9.09037     -0.65756751     -0.06209316
e   0.1653095      Incl.   25.65796     -0.73374980     -0.17332225
P   1.18           H   20.0           G   0.15           U   9

MPEC 2009 - S50

2009 SG2
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.23
Palermo Scale (cumulative) -5.11
Impact Probability (cumulative) 1.3e-08
Number of Potential Impacts 13
Vimpact 17.74 km/s
Vinfinity 13.80 km/s
H 20.0
Diameter 0.340 km
Mass 5.2e+10 kg
Energy 2.0e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
19 observations spanning .53098 days
(2009-Sep-18.72181 to 2009-Sep-19.25279)

The 270 - 600 metre wide asteroid 2009 SG2 will make a close pass (50.5 Lunar Distances, 0.1296 AU), travelling at 13.81 km/s, to the Earth-Moon system on the 26th September, 2009.

See more

The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00256 AU).

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