(17543) Sosva Outer Main-belt Asteroid
Discovered on 14 August 1993 by E. W. Elst at Caussols.
The Sosva river in western Siberia is one of the many tributaries of the Ob.Naming citation (20061109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sosva is today
Seen from above the solar system on 2026-10-14: Sosva is 2.93 au from the Sun and 3.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17543 |
| Provisional designation | 1993 PA3 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 10.5 km (#4,847 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0930 |
| Rotation period | 7.58 hours |
| Absolute magnitude (H) | 12.77 |
| Orbital period | 5.83 years |
| Semi-major axis | 3.24 au |
| Perihelion – aphelion | 2.92 – 3.55 au |
| Eccentricity | 0.0975 |
| Inclination | 18.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.99 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.