(12400) Katumaru Main-belt Asteroid
Discovered on 28 July 1995 by T. Okuni at Nanyo.
Katumaru Okuni (b. 1932) is the younger brother of the discoverer.Naming citation (20021120/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Katumaru is today
Seen from above the solar system on 2026-10-14: Katumaru is 2.53 au from the Sun and 3.53 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12400 |
| Provisional designation | 1995 OA1 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 2.61 hours |
| Absolute magnitude (H) | 14.47 |
| Orbital period | 3.58 years |
| Semi-major axis | 2.34 au |
| Perihelion – aphelion | 1.94 – 2.74 au |
| Eccentricity | 0.171 |
| Inclination | 5.84° |
| Closest distance between its orbit and Earth's (MOID) | 0.940 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.