(78905) Seanokeefe Main-belt Asteroid
Discovered on 16 September 2003 by NEAT at Palomar.
Named in honor of Sean O'Keefe (b. 1956), for his vision and leadership in advancing the spirit of exploration during his tenure as the tenth NASA administrator, 2001-2004.Naming citation (20050407/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Seanokeefe is today
Seen from above the solar system on 2026-10-14: Seanokeefe is 2.41 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 78905 |
| Provisional designation | 2003 SK85 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.58 km (#13,741 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.181 |
| Absolute magnitude (H) | 14.59 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 1.80 – 3.02 au |
| Eccentricity | 0.252 |
| Inclination | 21.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.910 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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