(5222) Ioffe Main-belt Asteroid
Discovered on 11 October 1980 by N. S. Chernykh at Nauchnyj.
Where Ioffe is today
Seen from above the solar system on 2026-10-14: Ioffe is 3.15 au from the Sun and 2.19 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5222 |
| Provisional designation | 1980 TL13 |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.0 km (#2,501 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Rotation period | 9.72 hours |
| Spectral type | B |
| Absolute magnitude (H) | 11.56 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.77 au |
| Perihelion – aphelion | 2.37 – 3.18 au |
| Eccentricity | 0.145 |
| Inclination | 34.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.39 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.