Last update: 2019-11-18 21:40 UTC
Summary
Orbit Properties
Physical Properties
Observations
Ephemerides
Close Approaches
Possible Impacts
 
99942 Apophis
Orbital Properties
Epoch 58800.0 MJD
Orbit type Aten
Perihelion (q) 0.746 au
Aphelion (Q) 1.099 au
Eccentricity (e) 0.191 -
Inclination (i) 3.3 deg
Orbit period (P) 323.6 days
Earth MOID 0.00062 au
Next Earth close approach
Date 2021/03/06
Nominal distance (from Earth center) 0.11265 au
16852454 km
Maximum Brightness 15.6 -
Risk
Object is in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H) 19 -
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