(15202) Yamada-Houkoku Main-belt Asteroid
Discovered on 12 March 1977 by Kosai, H., Hurukawa, K. at Kiso.
Yamada-Houkoku (1805-1877) was a Confucian and Japanese scholar of the late Edo period, born in Okayama prefecture.Naming citation (20060809/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yamada-Houkoku is today
Seen from above the solar system on 2026-10-14: Yamada-Houkoku is 2.60 au from the Sun and 2.98 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15202 |
| Provisional designation | 1977 EM5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.09 km (#6,482 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0560 |
| Rotation period | 26.3 hours |
| Absolute magnitude (H) | 14.54 |
| Orbital period | 3.70 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 1.89 – 2.89 au |
| Eccentricity | 0.210 |
| Inclination | 9.57° |
| Closest distance between its orbit and Earth's (MOID) | 0.909 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 12 March 1977
- (3319) Kibi
- (4272) Entsuji
- (5454) Kojiki
- (6218) Mizushima
- (10009) Hirosetanso
- (12186) Mitukurigen
- (14315) Ogawamachi
- (14316) Higashichichibu
- (14795) Syoyou
- (15671) Suzannedebarbat
- (15672) Sato-Norio
- (19917) Dazaifu