(21694) Allisowilson Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Allison Ruth Wilson (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for her biochemistry project. She attends the West Central Valley High School, Stuart, Iowa, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Allisowilson is today
Seen from above the solar system on 2026-10-14: Allisowilson is 3.04 au from the Sun and 4.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21694 |
| Provisional designation | 1999 RL48 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 14.9 |
| Orbital period | 4.14 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 1.90 – 3.26 au |
| Eccentricity | 0.263 |
| Inclination | 4.08° |
| Closest distance between its orbit and Earth's (MOID) | 0.916 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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