(20313) Fredrikson Main-belt Asteroid
Discovered on 20 March 1998 by LINEAR at Socorro.
Robert Fredrikson mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Cranbrook Kingswood School, Bloomfield Hills, Michigan.Naming citation (20040415/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Fredrikson is today
Seen from above the solar system on 2026-10-14: Fredrikson is 2.50 au from the Sun and 3.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20313 |
| Provisional designation | 1998 FM122 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.11 km (#10,412 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0890 |
| Absolute magnitude (H) | 15.06 |
| Orbital period | 4.04 years |
| Semi-major axis | 2.54 au |
| Perihelion – aphelion | 2.28 – 2.80 au |
| Eccentricity | 0.102 |
| Inclination | 5.83° |
| Closest distance between its orbit and Earth's (MOID) | 1.27 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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