* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> Solar System -> Asteroid 2008 AF4
Post Info TOPIC: Asteroid 2008 AF4
Blobrana


L

Posts: 131433
Date:
RE: Asteroid 2008 AF4
Permalink  
 

The 310 - 690 metre wide asteroid 2008 AF4 will make a close pass (75.3 lunar distances, 0.1936 AU), travelling at 16.05 km/second, to the Earth-Moon system on the 10th August, 2012 @ 19:47 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

Posts: 131433
Date:
Permalink  
 

Removed from Earth Impact Risk List.

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

2008 AF4
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.48
Palermo Scale (cumulative) -4.48
Impact Probability (cumulative) 1.7e-07
Number of Potential Impacts 2
Vimpact 16.13 km/s
Vinfinity 11.66 km/s
H 19.7
Diameter 0.400 km
Mass 8.4e+10 kg
Energy 2.6e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
607 observations spanning 296.97 days
(2007-Jul-28.34795 to 2008-May-20.315005)



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

2008 AF4
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -3.94
Palermo Scale (cumulative) -3.93
Impact Probability (cumulative) 5.9e-07
Number of Potential Impacts 2
Vimpact 16.13 km/s
Vinfinity 11.66 km/s
H 19.7
Diameter 0.400 km
Mass 8.4e+10 kg
Energy 2.6e+03 MT
all above are mean values
weighted by impact probability
Analysis based on
607 observations spanning 296.97 days
(2007-Jul-28.34899 to 2008-May-20.315005)



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Vimpact16.13 km/s
Vinfinity11.66 km/s
H19.7
Diameter0.390 km
Mass8.1e+10 kg
Energy2.5e+03 MT


Asteroid 2008 AF4 at Torino Scale 1.

Object
Designation		Year
Range		Potential
Impacts		Impact
Prob.
(cum.)		Vinfinity
(km/s)		H
(mag)		Est.
Diam.
(km)		Palermo
Scale
(cum.)		Palermo
Scale
(max.)		Torino
Scale
(max.)
2007 VK1842048-205743.4e-04 15.6322.0 0.130-1.82-1.831
2008 AF42078-2100123.0e-05 11.6619.7 0.390-2.19-2.291


__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> Solar System -> Asteroid 2008 AF4


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard