(21433) Stekramer Main-belt Asteroid
Discovered on 31 March 1998 by LINEAR at Socorro.
Stephen Curt Kramer (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his behavioral and social sciences project. He attends the Byram Hills High School, Armonk, New York.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Stekramer is today
Seen from above the solar system on 2026-10-14: Stekramer is 2.36 au from the Sun and 2.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21433 |
| Provisional designation | 1998 FO115 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.54 km (#16,190 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.208 |
| Absolute magnitude (H) | 15.23 |
| Orbital period | 3.29 years |
| Semi-major axis | 2.21 au |
| Perihelion – aphelion | 2.03 – 2.39 au |
| Eccentricity | 0.0817 |
| Inclination | 3.59° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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