2008 AF4

Infobox Planet | discovery=yes | physical_characteristics = yes | bgcolour=#FFFFC0
name=2008 AF4
discoverer=
discovered=January 10, 2008
alt_names=
mp_category=Apollo
orbit_ref = cite web |title =JPL Small-Body Database Browser: 2008 AF4 |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2008+AF4&orb=1 |accessdate=2008-02-05]
epoch=May 14, 2008 (JD 2454600.5)
semimajor=1.382570321897325±1.896e-05 AU
perihelion=0.8147012086707814±3.5283e-06 AU
aphelion=1.950439435123868±2.6748e-05 AU
eccentricity=0.4107343432970895±1.0617e-05
period=593.7850679079642±0.012214 d (1.63±3.344e-05a)
inclination=8.920043606536419±0.00020299°
asc_node=109.4303940330929±7.2627e-05°
arg_peri=293.3361862619637±0.00011821°
mean_anomaly=106.4875997727181±0.0023546°
avg_speed=11.66 km/s
dimensions=390 m
mass=8.3x10¹⁰ kg
density=
surface_grav=
escape_velocity=
rotation=
spectral_type=
abs_magnitude=19.677
albedo=
single_temperature=

2008 AF4 is an asteroid which is listed on the Near Earth Object Risk List that at one time had a rating on the Torino Scale of Level 1. By May 2008, it was rated as having a 1 in 909,000 chance of impacting Earth in 2096, 2099 or 2100.

References

*http://neo.jpl.nasa.gov/risk/2008af4.html

External links

*JPL Small Body