(15303) Hatoyamamachi Main-belt Asteroid
Discovered on 19 October 1992 by Endate, K., Watanabe, K. at Kitami.
Hatoyamamachi is a town in Saitama within the Tokyo metropolitan area. While rich in nature, the town contains cutting-edge technology institutes for earth observation, meteorology and fundamental research.Naming citation (MPC batch dated 2015-08-29), IAU / Minor Planet Center, via NASA/JPL
Where Hatoyamamachi is today
Seen from above the solar system on 2026-10-14: Hatoyamamachi is 3.14 au from the Sun and 4.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15303 |
| Provisional designation | 1992 UJ2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.52 km (#6,134 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.202 |
| Absolute magnitude (H) | 13.09 |
| Orbital period | 5.17 years |
| Semi-major axis | 2.99 au |
| Perihelion – aphelion | 2.66 – 3.33 au |
| Eccentricity | 0.112 |
| Inclination | 9.14° |
| Closest distance between its orbit and Earth's (MOID) | 1.66 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 October 1992
- (6496) Kazuko
- (8529) Sinzi
- (10118) Jiwu
- (13094) Shinshuueda
- (13564) Kodomomiraikan
- (22351) Yamashitatoshiki
- (26852) Miyamototakashi
- (35143) Harimoto