(1822) Waterman Main-belt Asteroid
Discovered on 25 July 1950 by Indiana University at Brooklyn.
Where Waterman is today
Seen from above the solar system on 2026-10-14: Waterman is 1.85 au from the Sun and 2.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1822 |
| Provisional designation | 1950 OO |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.05 km (#8,840 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.325 |
| Rotation period | 7.58 hours |
| Absolute magnitude (H) | 13.19 |
| Orbital period | 3.20 years |
| Semi-major axis | 2.17 au |
| Perihelion – aphelion | 1.84 – 2.50 au |
| Eccentricity | 0.152 |
| Inclination | 0.957° |
| Closest distance between its orbit and Earth's (MOID) | 0.825 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.