(21550) Laviolette Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Jessica Lynn Laviolette (b. 1987) was awarded first place in the 2006 Intel International Science and Engineering Fair for her engineering project. She attends the Brandon High School, Ortonville, Michigan, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Laviolette is today
Seen from above the solar system on 2026-10-14: Laviolette is 2.98 au from the Sun and 1.99 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21550 |
| Provisional designation | 1998 QS44 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.1 km (#5,030 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.119 |
| Rotation period | 13.6 hours |
| Absolute magnitude (H) | 13.13 |
| Orbital period | 4.59 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.54 – 2.98 au |
| Eccentricity | 0.0794 |
| Inclination | 6.16° |
| Closest distance between its orbit and Earth's (MOID) | 1.55 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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