Asteroid (99942) Apophis

Orbital characteristics

Epoch 1-Jul-2021 (2459396.5 JD)
Apoapsis1.0993 AU
1.6446×108 km
Periapsis0.7461 AU
1.1161×108 km
Semi-major axis0.9227 AU
1.3803×108 km
Eccentricity 0.1914348
Inclination3.3389 °
Longitude of asc. node203.97 °
Argument of periapsis126.59 °
Orbital period323.735 days
0.886 years
Avg. orbital speed30.72 km/s

Physical characteristics

Mean diameter0.3400 km
Rotation period (synodic)30.400 hours
Textures: Solid Gray Grid



Models are given in Stanford Triangle Format (PLY) and Alias Waveform Format (OBJ) - you can use MeshLab or any other tool to convert them to other formats.

Please note that the models are in planetocentric coordinate system, with Z axis passing through north pole. Actual rotational axis may differ from planetocentric poles, especially for small irregular bodies.

Surface Textures

This object does not have textures yet and is being displayed as a solid gray shape.

Last Modified: 27 Sep 2021