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Post Info TOPIC: Asteroid 2010 AR1


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RE: Asteroid 2010 AR1
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Removed as an Earth Impact Risk.

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2010 AR1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -8.99
Palermo Scale (cumulative) -8.53
Impact Probability (cumulative) 1.5e-08
Number of Potential Impacts 13
Vimpact 12.71 km/s
Vinfinity 6.11 km/s
H 25.8
Diameter 0.023 km
Mass 1.7e+07 kg
Energy 3.2e-01 MT
all above are mean values
weighted by impact probability
Analysis based on
17 observations spanning .99057 days
(2010-Jan-07.27712 to 2010-Jan-08.26769)



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2010 AR1
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.86
Palermo Scale (cumulative) -5.11
Impact Probability (cumulative) 2.2e-05
Number of Potential Impacts 199
Vimpact 12.92 km/s
Vinfinity 6.54 km/s
H 25.9
Diameter 0.023 km
Mass 1.6e+07 kg
Energy 3.2e-01 MT
all above are mean values
weighted by impact probability
Analysis based on
14 observations spanning .37542 days
(2010-Jan-07.27712 to 2010-Jan-07.65254)



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Orbital elements:
2010 AR1 Earth MOID = 0.0020 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 14.51674 (2000.0) P Q
n 0.49584923 Peri. 200.29445 +0.36703030 -0.93017196
a 1.5808947 Node 228.17396 +0.85497938 +0.34084884
e 0.3973451 Incl. 0.63818 +0.36646830 +0.13638986
P 1.99 H 25.9 G 0.15 U 7

MPEC 2010 - A30



The 18 - 40 metre wide asteroid 2010 AR1 made a close pass (4.1 lunar distances, 0.0105 AU), travelling at 6.78 km/second, to the Earth-Moon system on the 29th December, 2009.

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


-- Edited by Blobrana on Friday 8th of January 2010 12:17:04 AM

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