Asteroid (4) Vesta

Orbital characteristics

Epoch 16-Feb-2017 (2457800.5 JD)
Apoapsis2.5718 AU
3.8473×108 km
Periapsis2.1508 AU
3.2176×108 km
Semi-major axis2.3613 AU
3.5325×108 km
Eccentrity0.0891361
Inclination7.1405 °
Longitude of asc. node103.84 °
Argument of periapsis151.08 °
Orbital period1325.33 days
3.629 years
Avg. orbital speed19.34 km/s

Physical characteristics

Mean diameter530.00 km
Mass2.668×1020 kg
Avg. density3.422 g/cm3
Equatorial surface gravity0.253 m/s2
0.026 g
Escape velocity0.367 km/s
Rotation period (sidereal)5.3421 hours
Albedo0.423
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Colored Vesta mosaic was made by combining red, green and blue channels from Thomas Roatch's dataset. Some areas remained black as there were no enough data to render them in full color. I will replace this map with a better one once NASA or ESA produces it.


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.

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

Textures are simple cylindrical projections with prime meridian at the middle, provided at the highest resolution available.

Last Modified: 02 Dec 2016