* Astronomy

Blobrana · L

RE: Asteroid 2009 HC

Blobrana · L

2009 HC
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.49
Palermo Scale (cumulative)	-6.35
Impact Probability (cumulative)	1.0e-06
Number of Potential Impacts	5

V_impact	11.75 km/s
V_infinity	3.74 km/s
H	24.8
Diameter	0.037 km
Mass	7.0e+07 kg
Energy	1.2e+00 MT
all above are mean values weighted by impact probability

Analysis based on
143 observations spanning 35.932 days
(2009-Apr-17.23164 to 2009-May-23.16322)

Blobrana · L

2009 HC
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.71
Palermo Scale (cumulative)	-6.08
Impact Probability (cumulative)	2.1e-06
Number of Potential Impacts	6

V_impact	11.75 km/s
V_infinity	3.73 km/s
H	24.9
Diameter	0.036 km
Mass	6.3e+07 kg
Energy	1.0e+00 MT
all above are mean values weighted by impact probability

Analysis based on
111 observations spanning 17.985 days
(2009-Apr-17.23164 to 2009-May-05.21619)

Source

Blobrana · L

2009 HC
Earth Impact Risk Summary

Torino Scale (maximum)	0
Palermo Scale (maximum)	-6.95
Palermo Scale (cumulative)	-6.44
Impact Probability (cumulative)	9.3e-07
Number of Potential Impacts	6

V_impact	11.75 km/s
V_infinity	3.73 km/s
H	24.9
Diameter	0.036 km
Mass	6.4e+07 kg
Energy	1.1e+00 MT
all above are mean values weighted by impact probability

Analysis based on
40 observations spanning 2.1572 days
(2009-Apr-17.23164 to 2009-Apr-19.38884)

Source

Blobrana · L

Orbital elements:
2009 HC                                                  Earth MOID = 0.0105 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5                 MPC
M 136.75803              (2000.0)            P               Q
n   0.93025249     Peri.  269.82703     -0.40071940     -0.91581272
a   1.0392870      Node   203.85118     +0.86464832     -0.36838670
e   0.1259340      Incl.    3.78101     +0.30299709     -0.15993216
P   1.06           H   24.8           G   0.15           U   7

MPEC 2009 - H05