Last update: 2019-04-21 14:10 UTC
Summary
Orbit Properties
Physical Properties
Observations
Ephemerides
Close Approaches
Possible Impacts
 
99942 Apophis
Orbital Properties
Orbit type Aten
Perihelion (q) 0.746 au
Aphelion (Q) 1.099 au
Eccentricty (e) 0.191 -
Inclination (i) 3.3 deg
Orbit period (P) 323.6 days
Earth MOID 0.00016 au
Next Earth close approach
Date 2021/03/06
Nominal distance (from Earth center) 0.11265 au
16852454 km
Maximum Brightness 15.4 -
Risk
Object is in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H) 18.9 -
Diameter 375 m
Taxonomic type S/Sq
Rotation period (T) 30.5600 h
Orbit Visualization
Discovery Information
Discovery Date 2004-06-19
Observatory Kitt Peak
External Links
Proper elements