(3902) Yoritomo Outer Main-belt Asteroid
Discovered on 14 January 1986 by Inoda, S., Urata, T. at Karasuyama.
Where Yoritomo is today
Seen from above the solar system on 2026-10-14: Yoritomo is 3.39 au from the Sun and 4.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3902 |
| Provisional designation | 1986 AL |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 28.4 km (#1,451 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0610 |
| Rotation period | 10.8 hours |
| Absolute magnitude (H) | 11.69 |
| Orbital period | 5.81 years |
| Semi-major axis | 3.23 au |
| Perihelion – aphelion | 3.02 – 3.44 au |
| Eccentricity | 0.0643 |
| Inclination | 15.6° |
| Closest distance between its orbit and Earth's (MOID) | 2.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.