Asteroid (99942) Apophis
Orbital characteristics
| Epoch 1-Jul-2021 (2459396.5 JD) | |
| Apoapsis | 1.0993 AU |
| 1.6446×108 km | |
| Periapsis | 0.7461 AU |
| 1.1161×108 km | |
| Semi-major axis | 0.9227 AU |
| 1.3803×108 km | |
| Eccentricity | 0.1914348 |
| Inclination | 3.3389 ° |
| Longitude of asc. node | 203.97 ° |
| Argument of periapsis | 126.59 ° |
| Orbital period | 323.735 days |
| 0.886 years | |
| Avg. orbital speed | 30.72 km/s |
Physical characteristics
| Mean diameter | 0.3400 km |
| Rotation period (synodic) | 30.400 hours |
| Albedo | 0.230 |
Links
Shape model data sources
- Pravec et al., The tumbling spin state of (99942) Apophis. Icarus, Volume 233, 2014 link
Downloads
Models
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.
- Apophis (Model 1) (PLY 38 KB) (OBJ 61 KB)
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.