(10318) Sumaura Main-belt Asteroid
Discovered on 15 October 1990 by Nomura, T., Kawanishi, K. at Minami-Oda.
Sumaura Elementary School, established in 1902, is the oldest private elementary school in Kobe. It continually produces talented people. The name was suggested by Ken Nomura, son of the first discoverer.Naming citation (20050523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sumaura is today
Seen from above the solar system on 2026-10-14: Sumaura is 1.80 au from the Sun and 1.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10318 |
| Provisional designation | 1990 TX |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.93 km (#12,924 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.287 |
| Absolute magnitude (H) | 14.15 |
| Orbital period | 3.58 years |
| Semi-major axis | 2.34 au |
| Perihelion – aphelion | 1.72 – 2.96 au |
| Eccentricity | 0.265 |
| Inclination | 4.47° |
| Closest distance between its orbit and Earth's (MOID) | 0.726 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 October 1990
- (5187) Domon
- (5188) Paine
- (6905) Miyazaki
- (6964) Kunihiko
- (8274) Soejima
- (8660) Sano
- (9333) Hiraimasa
- (10760) Ozeki
- (12706) Tanezaki
- (14395) Tommorgan
- (16503) Ayato
- (19160) Chikayoshitomi