(20458) Koshkin Main-belt Asteroid
Discovered on 9 June 1999 by LINEAR at Socorro.
Mykola Koshkin (b. 1954) is a Ukrainian astronomer at the Astronomical Observatory of Odesa I. I. Mechnikov National University. He has contributed to the photometric and dynamical study of near-Earth objects.Naming citation (WGSBN Bull. 6, #11, 22), IAU / Minor Planet Center, via NASA/JPL
Where Koshkin is today
Seen from above the solar system on 2026-10-14: Koshkin is 2.86 au from the Sun and 3.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 20458 |
| Provisional designation | 1999 LZ21 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.48 km (#14,024 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.111 |
| Absolute magnitude (H) | 15.52 |
| Orbital period | 3.59 years |
| Semi-major axis | 2.34 au |
| Perihelion – aphelion | 1.82 – 2.87 au |
| Eccentricity | 0.223 |
| Inclination | 5.86° |
| Closest distance between its orbit and Earth's (MOID) | 0.819 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 9 June 1999
- (11423) Cronin
- (17162) Nithinkavi
- (17163) Vasifedoseev
- (19573) Cummings
- (19574) Davidedwards
- (19575) Feeny
- (19577) Bobbyfisher
- (20454) Pedrajo
- (20455) Pennell
- (20459) Krzysztoflangner
- (21622) Victorshia
- (21623) Albertshieh