(2573) Hannu Olavi Main-belt Asteroid
Discovered on 10 March 1953 by H. Alikoski at Turku.
Where Hannu Olavi is today
Seen from above the solar system on 2026-10-14: Hannu Olavi is 2.72 au from the Sun and 3.71 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2573 |
| Provisional designation | 1953 EN |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.2 km (#2,179 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.119 |
| Rotation period | 4.94 hours |
| Absolute magnitude (H) | 11.67 |
| Orbital period | 5.25 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.72 – 3.32 au |
| Eccentricity | 0.0993 |
| Inclination | 12.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.