(2978) Roudebush Main-belt Asteroid
Discovered on 26 September 1978 by Harvard Observatory at Harvard.
Where Roudebush is today
Seen from above the solar system on 2026-10-14: Roudebush is 2.96 au from the Sun and 3.51 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2978 |
| Provisional designation | 1978 SR |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.9 km (#2,372 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0720 |
| Rotation period | 62.4 hours |
| Absolute magnitude (H) | 12.31 |
| Orbital period | 5.44 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.51 – 3.68 au |
| Eccentricity | 0.188 |
| Inclination | 1.23° |
| Closest distance between its orbit and Earth's (MOID) | 1.50 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 September 1978
- (2702) Batrakov
- (2771) Polzunov
- (2890) Vilyujsk
- (3039) Yangel
- (3190) Aposhanskij
- (3410) Vereshchagin
- (3558) Shishkin
- (3586) Vasnetsov
- (3600) Archimedes
- (3655) Eupraksia
- (3657) Ermolova
- (3863) Gilyarovskij