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Post Info TOPIC: Asteroid 2004 FU162


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RE: Asteroid 2004 FU162
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On March 31, 2004, meteoroid 2004 FU162 set a new record for closest recorded approach, passing Earth only 6,500 km (4,000 mi) away (about one-sixtieth of the distance to the Moon). Because it was very small (6 meters/20 feet), FU162 was detected only hours before its closest approach. If it had collided with Earth, it probably would have harmlessly disintegrated in the atmosphere.
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The 6 metre wide asteroid 2004 FU162 will pass the Earth-Moon system on the 31st March, 2011.

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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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The closest observed
spacer.gif 2004 FU162

2004 FU162

asteroid yet to skim past the Earth without hitting the atmosphere:
The previously unknown object, spanning 5- 10 metres across, has been named 2004 FU162. It streaked across the sky just 6500 kilometres - roughly the radius of the Earth - above the ground on 31 March, although details have only now emerged.


Orbital elements:2004 FU162

Epoch 2004 July 14.0 TT = JDT 2453200.5

M 33.72709
(2000.0)
P Q
n 1.31111456
Peri. 139.80776
+0.87470240 +0.48445394
a 0.8267527
Node 191.24124
-0.46121410 +0.82306453
e 0.3919592
Incl. 4.16120
-0.14892032 +0.29642732
P 0.75
H 28.7
G 0.15 U 9

 



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2004 FU162
Earth Impact Risk Summary
Torino Scale (maximum)0
Palermo Scale (maximum)-5.66
Palermo Scale (cumulative)-5.08
Impact Probability (cumulative)6.4e-05
Number of Potential Impacts963
Vimpact14.96 km/s
Vinfinity9.68 km/s
H29.0
Diameter0.006 km
Mass3.2e+05 kg
Energy1.1e-02 MT
all above are mean values
weighted by impact probability
Analysis based on
4 observations spanning .03055 days
(2004-Mar-31.27744 to 2004-Mar-31.30799)
 


These results were computed on May 07, 2008

2004 FU162
Earth Impact Table
DateDistanceWidthSigma
Impact
Sigma
LOV
Stretch
LOV
Impact
Probability
Impact
Energy
Palermo
Scale
Torino
Scale
YYYY-MM-DD.DD(rEarth)(rEarth)

(rEarth)
(MT)

2009-03-31.30 0.01 4.74e-01 0.000 3.61011 4.41e+04 2.3e-08 7.43e-04 -8.57 0

 



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2004 FU162 is a meteoroid which passed within about one Earth radius of the surface of the Earth at 15:35 UTC on March 31, 2004, or 2.02 Earth radii from the centre of the Earth.
As of 2006 this is the third or fourth closest approach of any such space rock. The discovery was not announced until August 22, 2004.
2004 FU162 is estimated to be only 6 meters in diameter.

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Earth Impact Risk Summary
Torino Scale (maximum)0
Palermo Scale (maximum)-6.37
Palermo Scale (cumulative)-5.41
Impact Probability (cumulative)6.2e-05
Number of Potential Impacts821
 
Earth Impact Table
DateDistanceWidthSigma
Impact
Sigma
LOV
Stretch
LOV
Impact
Probability
Impact
Energy
Palermo
Scale
Torino
Scale
YYYY-MM-DD.DD(rEarth)(rEarth)  (rEarth) (MT)  
2008-03-31.62 1.50 4.00e-01 1.254 -0.29733 8.70e+04 4.8e-07 1.34e-02 -6.85 0


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