Orbit from osculating elements
4 Vesta is placed by solving a Keplerian orbit at the simulation time (a = 2.4 AU, e = 0.0887, i = 7.1°, period 1,325.8 d).
Second-largest asteroid and second-most massive object in the asteroid belt. Visited by NASA's Dawn spacecraft.
One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.
4 Vesta is placed by solving a Keplerian orbit at the simulation time (a = 2.4 AU, e = 0.0887, i = 7.1°, period 1,325.8 d).
4 Vesta: mean radius 262.7 km; mass 2.590 × 10^20 kg. These values are bundled with the object record and drive the rendered size.
The surface is a procedural shape unless a source record above says otherwise. It is not a measured shape model.
The short description and the fact list are written by the Space Time authors for orientation. They are not quoted from a catalog field and carry no citation of their own.
| Dataset | Last refreshed | Horizon | Automated |
|---|---|---|---|
| Current comets and near-Earth asteroids | no snapshot date | Osculating elements at the snapshot epoch; propagated as two-body conics | Yes, weekly (Monday data job) npm run fetch:data |