Asteroid (87) Sylvia

Orbital characteristics

Epoch 1-Jul-2021 (2459396.5 JD)
Apoapsis3.8073 AU
5.6956×108 km
Periapsis3.1543 AU
4.7187×108 km
Semi-major axis3.4808 AU
5.2071×108 km
Eccentricity 0.0938008
Inclination10.876 °
Longitude of asc. node73.023 °
Argument of periapsis263.76 °
Orbital period2371.97 days
6.494 years
Avg. orbital speed15.93 km/s

Physical characteristics

Mean diameter253.05 km
Mass1.48×1019 kg
Avg. density1.745 g/cm3
Equatorial surface gravity0.062 m/s2
0.006 g
Escape velocity0.125 km/s
Rotation period (sidereal)5.1836 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: 31 Aug 2021