(10639) Gleason Main-belt Asteroid
Discovered on 14 November 1998 by Spacewatch at Kitt Peak.
Arianna Gleason (b. 1980) is a student observer with the Spacewatch Project. She has been instrumental in the data reduction for two Spacewatch papers on the outer solar system and is a prolific discoverer of Near-Earth Objects.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Gleason is today
Seen from above the solar system on 2026-10-14: Gleason is 2.07 au from the Sun and 1.60 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10639 |
| Provisional designation | 1998 VV41 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.78 km (#13,259 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.275 |
| Absolute magnitude (H) | 14.37 |
| Orbital period | 3.26 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.85 – 2.54 au |
| Eccentricity | 0.157 |
| Inclination | 2.76° |
| Closest distance between its orbit and Earth's (MOID) | 0.838 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.