(3387) Greenberg Main-belt Asteroid
Discovered on 20 November 1981 by E. Bowell at Anderson Mesa.
Where Greenberg is today
Seen from above the solar system on 2026-10-14: Greenberg is 2.39 au from the Sun and 3.06 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3387 |
| Provisional designation | 1981 WE |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.07 km (#6,506 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.359 |
| Rotation period | 2.69 hours |
| Absolute magnitude (H) | 12.6 |
| Orbital period | 4.19 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.11 – 3.09 au |
| Eccentricity | 0.188 |
| Inclination | 12.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.