(33008) Tatematsu Outer Main-belt Asteroid
Discovered on 3 March 1997 by Endate, K., Watanabe, K. at Kitami.
Ken'ichi Tatematsu (b. 1959) is professor emeritus at the National Astronomical Observatory of Japan. He served as the ALMA Japan Project Director and as Director of the Nobeyama Radio Observatory. Ken'ichi has been involved in research on the physics and chemistry of molecular cloud cores in Orion through radio observations.Naming citation (WGSBN Bull. 5, #17, 19), IAU / Minor Planet Center, via NASA/JPL
Where Tatematsu is today
Seen from above the solar system on 2026-10-14: Tatematsu is 3.42 au from the Sun and 4.37 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 33008 |
| Provisional designation | 1997 EU17 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 15.7 km (#2,971 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0660 |
| Absolute magnitude (H) | 13.02 |
| Orbital period | 5.85 years |
| Semi-major axis | 3.25 au |
| Perihelion – aphelion | 3.07 – 3.43 au |
| Eccentricity | 0.0551 |
| Inclination | 13.6° |
| Closest distance between its orbit and Earth's (MOID) | 2.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.