(1960) Guisan Main-belt Asteroid
Discovered on 25 October 1973 by P. Wild at Zimmerwald.
Where Guisan is today
Seen from above the solar system on 2026-10-14: Guisan is 2.83 au from the Sun and 2.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1960 |
| Provisional designation | 1973 UA |
| Orbit class | Main-belt Asteroid |
| Diameter | 27.0 km (#1,542 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0410 |
| Rotation period | 8.46 hours |
| Absolute magnitude (H) | 12.21 |
| Orbital period | 4.02 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 2.22 – 2.83 au |
| Eccentricity | 0.122 |
| Inclination | 8.47° |
| Closest distance between its orbit and Earth's (MOID) | 1.22 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.