(10263) Vadimsimona Main-belt Asteroid
Discovered on 24 September 1976 by N. S. Chernykh at Nauchnyj.
Russian physicist Vadim Aleksandrovich Simonenko is deputy director of the Russian Scientific Research Institute of Technical Physics at Snezhinsk. He is known for his work on the hazards of near-Earth objects and the protection of the earth.Naming citation (WGSBN Bull. 5, #28, 6), IAU / Minor Planet Center, via NASA/JPL
Where Vadimsimona is today
Seen from above the solar system on 2026-10-14: Vadimsimona is 2.70 au from the Sun and 3.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10263 |
| Provisional designation | 1976 SE5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 15.9 km (#2,916 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0450 |
| Rotation period | 0.550 hours |
| Absolute magnitude (H) | 13.17 |
| Orbital period | 4.35 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.22 – 3.11 au |
| Eccentricity | 0.168 |
| Inclination | 10.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.25 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Vadim
All asteroids named after someone called Vadim
Also discovered on 24 September 1976
- (2323) Zverev
- (2362) Mark Twain
- (3158) Anga
- (3372) Bratijchuk
- (3436) Ibadinov
- (3517) Tatianicheva
- (3632) Grachevka
- (3923) Radzievskij
- (3966) Cherednichenko
- (4306) Dunaevskij
- (4468) Pogrebetskij
- (4777) Aksenov