(21699) Wolpert Main-belt Asteroid
Discovered on 7 September 1999 by LINEAR at Socorro.
Maya Nina Wolpert (b. 1988) was awarded first place and Best in Category in the 2006 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Hathaway Brown School, Shaker Heights, Ohio, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Wolpert is today
Seen from above the solar system on 2026-10-14: Wolpert is 3.01 au from the Sun and 2.79 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21699 |
| Provisional designation | 1999 RE64 |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.3 km (#4,948 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0610 |
| Rotation period | 87.8 hours |
| Absolute magnitude (H) | 13.94 |
| Orbital period | 5.51 years |
| Semi-major axis | 3.12 au |
| Perihelion – aphelion | 2.58 – 3.66 au |
| Eccentricity | 0.172 |
| Inclination | 3.02° |
| Closest distance between its orbit and Earth's (MOID) | 1.59 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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