(22106) Tomokoarai Main-belt Asteroid
Discovered on 5 July 2000 by LONEOS at Anderson Mesa.
Tomoko Arai (b. 1971) is a scientist at the Chiba Institute of Technology who studies the compositional properties of meteors to determine the wide range of properties for their asteroid and comet source bodies. She also develops new techniques for studying meteors from space platforms.Naming citation (MPC batch dated 2014-07-12), IAU / Minor Planet Center, via NASA/JPL
Where Tomokoarai is today
Seen from above the solar system on 2026-10-14: Tomokoarai is 2.47 au from the Sun and 1.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 22106 |
| Provisional designation | 2000 NC12 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.0 km (#4,072 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.101 |
| Absolute magnitude (H) | 12.9 |
| Orbital period | 4.19 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 1.93 – 3.27 au |
| Eccentricity | 0.257 |
| Inclination | 24.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Tomoko
All asteroids named after someone called Tomoko
Also discovered on 5 July 2000
- (18110) HASI
- (18111) Pinet
- (18112) Jeanlucjosset
- (18113) Bibring
- (18114) Rosenbush
- (18115) Rathbun
- (18116) Prato
- (18117) Jonhodge
- (28911) Mishacollins
- (30444) Shemp
- (30445) Stirling
- (30449) Caldas