(17831) Ussery Main-belt Asteroid
Discovered on 20 April 1998 by LINEAR at Socorro.
Robert Francis Ussery (b. 1985) was awarded second place in the 2003 Intel International Science and Engineering Fair for his engineering project. He attends the Seton Home Study School, Front Royal, Virginia, U.S.A.Naming citation (20040614/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Ussery is today
Seen from above the solar system on 2026-10-14: Ussery is 2.62 au from the Sun and 1.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 17831 |
| Provisional designation | 1998 HW35 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.20 km (#12,266 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.251 |
| Absolute magnitude (H) | 14.3 |
| Orbital period | 4.39 years |
| Semi-major axis | 2.68 au |
| Perihelion – aphelion | 2.52 – 2.84 au |
| Eccentricity | 0.0599 |
| Inclination | 2.39° |
| Closest distance between its orbit and Earth's (MOID) | 1.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert
Also discovered on 20 April 1998
- (9461) Cotingkeh
- (9463) Criscione
- (11706) Rijeka
- (11710) Nataliehale
- (12086) Joshualevine
- (12087) Tiffanylin
- (12088) Macalintal
- (12089) Maichin
- (12514) Schommer
- (12516) Karenyoung
- (12855) Tewksbury
- (16944) Wangler