(129149) Richwitherspoon Main-belt Asteroid
Discovered on 3 March 2005 by CSS at Catalina.
Richard A. Witherspoon (b. 1981) is the Lockheed Martin lead electrical test conductor for the OSIRIS-REx Asteroid Sample Return Mission. He also worked at Surrey Spacecraft Technologies.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL
Where Richwitherspoon is today
Seen from above the solar system on 2026-10-14: Richwitherspoon is 2.51 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 129149 |
| Provisional designation | 2005 EP51 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.21 |
| Orbital period | 4.19 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.44 – 2.76 au |
| Eccentricity | 0.0617 |
| Inclination | 1.67° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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