(27239) O'Dorney Main-belt Asteroid
Discovered on 8 September 1999 by LINEAR at Socorro.
Evan Michael O'Dorney (b. 1993) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for his mathematical-sciences project. He attends the Venture School, San Ramon, California, U.S.A.Naming citation (20110319/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where O'Dorney is today
Seen from above the solar system on 2026-10-14: O'Dorney is 2.50 au from the Sun and 2.29 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27239 |
| Provisional designation | 1999 RW211 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.22 |
| Orbital period | 3.46 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 2.04 – 2.54 au |
| Eccentricity | 0.109 |
| Inclination | 5.97° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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