(21813) Danwinegar Main-belt Asteroid
Discovered on 3 October 1999 by LINEAR at Socorro.
Daniel Rees Winegar (b. 1986) was awarded second place in the 2005 Intel International Science and Engineering Fair for his engineering team project. He attends the Copper Hills High School, West Jordan, Utah, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Danwinegar is today
Seen from above the solar system on 2026-10-14: Danwinegar is 2.83 au from the Sun and 2.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21813 |
| Provisional designation | 1999 TK25 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.97 km (#8,976 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0790 |
| Absolute magnitude (H) | 14.81 |
| Orbital period | 3.79 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 2.03 – 2.83 au |
| Eccentricity | 0.166 |
| Inclination | 2.99° |
| 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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