(15407) Udakiyoo Main-belt Asteroid
Discovered on 24 November 1997 by Y. Ikari at Moriyama.
Kiyoo Uda (1959-2009) was a potter at Shigaraki-ware and an amateur astronomer. He observed meteors, variable stars and occultations enthusiastically and made great contributions to astronomical popularization in Shiga prefecture.Naming citation (20100527/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Udakiyoo is today
Seen from above the solar system on 2026-10-14: Udakiyoo is 2.69 au from the Sun and 3.58 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15407 |
| Provisional designation | 1997 WM16 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.62 km (#11,398 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.330 |
| Absolute magnitude (H) | 13.81 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.84 – 2.70 au |
| Eccentricity | 0.189 |
| Inclination | 6.73° |
| Closest distance between its orbit and Earth's (MOID) | 0.838 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.