(3198) Wallonia Mars-crossing Asteroid
Discovered on 30 December 1981 by F. Dossin at Haute Provence.
Where Wallonia is today
Seen from above the solar system on 2026-10-14: Wallonia is 1.92 au from the Sun and 1.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3198 |
| Provisional designation | 1981 YH1 |
| Orbit class | Mars-crossing Asteroid |
| Rotation period | 7.57 hours |
| Spectral type | S |
| Absolute magnitude (H) | 13.15 |
| Orbital period | 3.22 years |
| Semi-major axis | 2.18 au |
| Perihelion – aphelion | 1.66 – 2.70 au |
| Eccentricity | 0.238 |
| Inclination | 18.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.710 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.