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Blobrana · L

RE: Asteroid 2009 RN

Blobrana · L

2009 RN
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-7.35
Palermo Scale (cumulative)	-7.35
Impact Probability (cumulative)	2.8e-10
Number of Potential Impacts	1

V_impact	15.77 km/s
V_infinity	11.15 km/s
H	19.8
Diameter	0.370 km
Mass	7.0e+10 kg
Energy	2.1e+03 MT
all above are mean values weighted by impact probability

Analysis based on
42 observations spanning 3.4454 days
(2009-Sep-11.00009 to 2009-Sep-14.44548)

Blobrana · L

2009 RN
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.77
Palermo Scale (cumulative)	-6.50
Impact Probability (cumulative)	2.0e-09
Number of Potential Impacts	3

V_impact	15.55 km/s
V_infinity	10.84 km/s
H	19.8
Diameter	0.370 km
Mass	6.8e+10 kg
Energy	2.0e+03 MT
all above are mean values weighted by impact probability

Analysis based on
39 observations spanning 2.3023 days
(2009-Sep-11.00009 to 2009-Sep-13.30238)

Blobrana · L

The 280 - 630 metre wide asteroid 2009 RN will make a close pass (50.6 Lunar Distances, 0.1300 AU), travelling at 6.72 km/s, to the Earth-Moon system on the 28th October, 2009.

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

Blobrana · L

2009 RN
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.02
Palermo Scale (cumulative)	-5.80
Impact Probability (cumulative)	1.1e-08
Number of Potential Impacts	7

V_impact	15.15 km/s
V_infinity	10.25 km/s
H	19.8
Diameter	0.370 km
Mass	6.9e+10 kg
Energy	1.9e+03 MT
all above are mean values weighted by impact probability

Analysis based on
36 observations spanning 2.0685 days
(2009-Sep-11.00009 to 2009-Sep-13.06858)

Blobrana · L

Orbital elements:
2009 RN                                             PHA, Earth MOID = 0.0096 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 335.91352              (2000.0)            P               Q
n   0.16773503     Peri.  345.53924     +0.56634083     -0.82227770
a   3.2562684      Node    69.93647     +0.76194401     +0.49655378
e   0.6956580      Incl.    3.40776     +0.31416459     +0.27801750
P   5.88           H   19.8           G   0.15           U   9

MPEC 2009 - R38

2009 RN
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-4.56
Palermo Scale (cumulative)	-4.36
Impact Probability (cumulative)	5.3e-08
Number of Potential Impacts	32

V_impact	15.96 km/s
V_infinity	11.32 km/s
H	19.8
Diameter	0.369 km
Mass	6.9e+10 kg
Energy	2.1e+03 MT
all above are mean values weighted by impact probability

Analysis based on
23 observations spanning .41782 days
(2009-Sep-11.00009 to 2009-Sep-11.41791)