(2398) Jilin Main-belt Asteroid
Discovered on 24 October 1965 by Purple Mountain Observatory at Nanking.
Where Jilin is today
Seen from above the solar system on 2026-10-14: Jilin is 2.86 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2398 |
| Provisional designation | 1965 UD2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.83 km (#5,204 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Rotation period | 3.18 hours |
| Absolute magnitude (H) | 13.68 |
| Orbital period | 3.70 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 1.83 – 2.96 au |
| Eccentricity | 0.236 |
| Inclination | 3.73° |
| Closest distance between its orbit and Earth's (MOID) | 0.842 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.