(5448) Siebold Main-belt Asteroid
Discovered on 26 September 1992 by A. Sugie at Dynic.
Where Siebold is today
Seen from above the solar system on 2026-10-14: Siebold is 1.99 au from the Sun and 2.34 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5448 |
| Provisional designation | 1992 SP |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.41 km (#8,375 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.272 |
| Rotation period | 2.95 hours |
| Spectral type | S |
| Absolute magnitude (H) | 12.92 |
| Orbital period | 3.31 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 1.90 – 2.54 au |
| Eccentricity | 0.145 |
| Inclination | 4.84° |
| Closest distance between its orbit and Earth's (MOID) | 0.908 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.