* Astronomy

Blobrana · L

RE: Asteroid 2009 SH2

Blobrana · L

The 28 - 62 metre wide asteroid 2009 SH2 will make a close pass (30.0 lunar distances, 0.0770 AU), travelling at 5.79 km/second, to the Earth-Moon system on the 28th September, 2011 @ 12:49 UT ±00:01.

See more

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

Blobrana · L

The 28 - 62 metre wide asteroid 2009 SH2 will make a close pass (7.1 lunar distances, 0.0183 AU), travelling at 4.56 km/second, to the Earth-Moon system on the 30th September, 2010.

See more

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

Blobrana · L

2009 SH2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.25
Palermo Scale (cumulative)	-5.24
Impact Probability (cumulative)	1.1e-05
Number of Potential Impacts	2

V_impact	11.91 km/s
V_infinity	4.21 km/s
H	24.7
Diameter	0.039 km
Mass	8.3e+07 kg
Energy	1.4e+00 MT
all above are mean values weighted by impact probability

Analysis based on
47 observations spanning 7.6201 days
(2009-Sep-18.76541 to 2009-Sep-26.38553)

Blobrana · L

2009 SH2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.15
Palermo Scale (cumulative)	-5.00
Impact Probability (cumulative)	1.9e-05
Number of Potential Impacts	6

V_impact	11.91 km/s
V_infinity	4.21 km/s
H	24.6
Diameter	0.040 km
Mass	8.7e+07 kg
Energy	1.5e+00 MT
all above are mean values weighted by impact probability

Analysis based on
35 observations spanning 6.3654 days
(2009-Sep-18.76541 to 2009-Sep-25.13082)

Blobrana · L

2009 SH2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.03
Palermo Scale (cumulative)	-4.74
Impact Probability (cumulative)	2.8e-05
Number of Potential Impacts	9

V_impact	11.91 km/s
V_infinity	4.21 km/s
H	24.5
Diameter	0.043 km
Mass	1.1e+08 kg
Energy	1.9e+00 MT
all above are mean values weighted by impact probability

Analysis based on
24 observations spanning 4.9629 days
(2009-Sep-18.76541 to 2009-Sep-23.72829)

Blobrana · L

2009 SH2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.74
Palermo Scale (cumulative)	-5.50
Impact Probability (cumulative)	4.5e-06
Number of Potential Impacts	18

V_impact	11.92 km/s
V_infinity	4.22 km/s
H	24.4
Diameter	0.045 km
Mass	1.2e+08 kg
Energy	2.1e+00 MT
all above are mean values weighted by impact probability

Analysis based on
14 observations spanning 1.9594 days
(2009-Sep-18.76541 to 2009-Sep-20.72486)

Blobrana · L

Orbital elements:
2009 SH2                                                 Earth MOID = 0.0011 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 179.79350              (2000.0)            P               Q
n   0.96770611     Peri.   89.63593     -0.12440841     -0.99211358
a   1.0122949      Node     7.56200     +0.85795217     -0.11529040
e   0.0906325      Incl.    6.66342     +0.49843818     -0.04918087
P   1.02           H   24.4           G   0.15           U   9

MPEC 2009 - S51

2009 SH2
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-5.57
Palermo Scale (cumulative)	-4.58
Impact Probability (cumulative)	2.6e-05
Number of Potential Impacts	441

V_impact	11.79 km/s
V_infinity	3.84 km/s
H	24.4
Diameter	0.046 km
Mass	1.3e+08 kg
Energy	2.1e+00 MT
all above are mean values weighted by impact probability

Analysis based on
9 observations spanning .56493 days
(2009-Sep-18.76541 to 2009-Sep-19.33034)

The 36 - 80 metre wide asteroid 2009 SH2 will make a close pass (2.8 Lunar Distances, 0.0072 AU), travelling at 4.38 km/s, to the Earth-Moon system on the 30th September, 2009.

See more

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