(10916) Okina-Ouna Main-belt Asteroid
Discovered on 31 December 1997 by N. Sato at Chichibu.
Okina and Ouna are the two small lunar explorers developed by the Japan Aerospace Exploration Agency. They were separated from the main orbiter of the lunar explorer “KAGUYA (SELENE)” in Oct. 2007. Okina and Ouna are also the foster parents of Kaguya in the old Japanese story Kaguya-hime.Naming citation (20090607/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Okina-Ouna is today
Seen from above the solar system on 2026-10-14: Okina-Ouna is 2.95 au from the Sun and 2.56 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10916 |
| Provisional designation | 1997 YB17 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.13 km (#8,743 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.296 |
| Rotation period | 15.0 hours |
| Absolute magnitude (H) | 13.36 |
| Orbital period | 4.90 years |
| Semi-major axis | 2.88 au |
| Perihelion – aphelion | 2.82 – 2.95 au |
| Eccentricity | 0.0227 |
| Inclination | 0.943° |
| Closest distance between its orbit and Earth's (MOID) | 1.80 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 December 1997
More named asteroids discovered by N. Sato
- (7851) Azumino
- (8581) Johnen
- (8924) Iruma
- (8933) Kurobe
- (9230) Yasuda
- (10224) Hisashi
- (10880) Kaguya
- (12027) Masaakitanaka
- (12031) Kobaton
- (12456) Genichiaraki
- (12460) Mando
- (12469) Katsuura
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