(18949) Tumaneng Main-belt Asteroid
Discovered on 25 August 2000 by LINEAR at Socorro.
Karen Andres Tumaneng (b. 1984) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her biochemistry project. She attends the Waipahu High School, Waipahu, Hawaii, U.S.A.Naming citation (20040830/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tumaneng is today
Seen from above the solar system on 2026-10-14: Tumaneng is 2.28 au from the Sun and 2.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18949 |
| Provisional designation | 2000 QX85 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.95 km (#17,085 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.465 |
| Rotation period | 9.73 hours |
| Absolute magnitude (H) | 15.4 |
| Orbital period | 3.49 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 2.14 – 2.46 au |
| Eccentricity | 0.0684 |
| Inclination | 6.86° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Karen
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