(21088) Chelyabinsk Amor
Discovered on 30 January 1992 by E. W. Elst at La Silla.
Chelyabinsk is a city in the Urals, Siberia. On 2013 February 15 a small asteroidal fragment exploded to the south of the city at a height of 30 km. More than 1500 people were injured from indirect effects of the explosion.Naming citation (MPC batch dated 2013-08-21), IAU / Minor Planet Center, via NASA/JPL
Where Chelyabinsk is today
Seen from above the solar system on 2026-10-14: Chelyabinsk is 1.31 au from the Sun and 1.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21088 |
| Provisional designation | 1992 BL2 |
| Orbit class | Amor · near-Earth |
| Diameter | 2.79 km (#15,675 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.206 |
| Rotation period | 11.2 hours |
| Absolute magnitude (H) | 14.33 |
| Orbital period | 2.23 years |
| Semi-major axis | 1.71 au |
| Perihelion – aphelion | 1.30 – 2.11 au |
| Eccentricity | 0.239 |
| Inclination | 38.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.307 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 January 1992
- (6051) Anaximenes
- (7187) Isobe
- (7947) Toland
- (10101) Fourier
- (13975) Beatrixpotter
- (15752) Eluard
- (16563) Ob
- (16564) Coriolis
- (20024) Mayremartinez
- (21087) Petsimpallas
- (29220) Xavierbaptista