(4288) Tokyotech Main-belt Asteroid
Discovered on 8 October 1989 by T. Kojima at Chiyoda.
Founded in 1881 as the Tokyo Vocational School, what is now the Tokyo Institute of Technology was made a degree-conferring university in 1929 and is the largest national institution of higher learning in Japan dedicated to science and technology.Naming citation (20080819/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tokyotech is today
Seen from above the solar system on 2026-10-14: Tokyotech is 2.84 au from the Sun and 3.63 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4288 |
| Provisional designation | 1989 TQ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 12.3 km (#3,966 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.223 |
| Rotation period | 3.18 hours |
| Absolute magnitude (H) | 11.66 |
| Orbital period | 4.26 years |
| Semi-major axis | 2.63 au |
| Perihelion – aphelion | 2.16 – 3.09 au |
| Eccentricity | 0.178 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 8 October 1989
More named asteroids discovered by T. Kojima
- (3774) Megumi
- (3786) Yamada
- (3829) Gunma
- (3995) Sakaino
- (3998) Tezuka
- (3999) Aristarchus
- (4041) Miyamotoyohko
- (4156) Okadanoboru
- (4493) Naitomitsu
- (4576) Yanotoyohiko
- (4632) Udagawa
- (4866) Badillo
← (4287) Trisov · (4289) Biwako →