Asteroid (283) Emma

Orbital characteristics

Epoch 1-Jul-2021 (2459396.5 JD)
Apoapsis3.4899 AU
5.2208×108 km
Periapsis2.6095 AU
3.9038×108 km
Semi-major axis3.0497 AU
4.5623×108 km
Eccentricity 0.1443398
Inclination7.9892 °
Longitude of asc. node303.90 °
Argument of periapsis55.407 °
Orbital period1945.28 days
5.326 years
Avg. orbital speed16.97 km/s

Physical characteristics

Mean diameter132.38 km
Mass1.38×1018 kg
Avg. density1.136 g/cm3
Equatorial surface gravity0.021 m/s2
0.002 g
Escape velocity0.053 km/s
Rotation period (sidereal)6.8952 hours



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: 12 Aug 2021