(15203) Grishanin Main-belt Asteroid
Discovered on 26 September 1978 by L. V. Zhuravleva at Nauchnyj.
Kirill Vladimirovich Grishanin (1909-2002), an eminent specialist in the field of hydrometeorology, delivered lectures at the St. Petersburg State University for Water Communications for nearly 50 years. He is author of numerous scientific works and some textbooks, one of which was reprinted three times.Naming citation (20060219/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Grishanin is today
Seen from above the solar system on 2026-10-14: Grishanin is 2.76 au from the Sun and 3.67 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15203 |
| Provisional designation | 1978 SS6 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.56 km (#5,377 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0520 |
| Rotation period | 11.6 hours |
| Absolute magnitude (H) | 14.21 |
| Orbital period | 3.80 years |
| Semi-major axis | 2.43 au |
| Perihelion – aphelion | 1.97 – 2.90 au |
| Eccentricity | 0.192 |
| Inclination | 2.67° |
| Closest distance between its orbit and Earth's (MOID) | 0.966 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Kirill
All asteroids named after someone called Kirill
Also discovered on 26 September 1978
- (2702) Batrakov
- (2771) Polzunov
- (2890) Vilyujsk
- (2978) Roudebush
- (3039) Yangel
- (3190) Aposhanskij
- (3410) Vereshchagin
- (3558) Shishkin
- (3586) Vasnetsov
- (3600) Archimedes
- (3655) Eupraksia
- (3657) Ermolova