(21545) Koirala Main-belt Asteroid
Discovered on 17 August 1998 by LINEAR at Socorro.
Pratistha Koirala (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for her botany project. She attends the Edwin O. Smith High School, Storrs Mansfield, Connecticut, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Koirala is today
Seen from above the solar system on 2026-10-14: Koirala is 3.06 au from the Sun and 2.85 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21545 |
| Provisional designation | 1998 QO33 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.7 |
| Orbital period | 5.29 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 3.00 – 3.07 au |
| Eccentricity | 0.0115 |
| Inclination | 8.86° |
| Closest distance between its orbit and Earth's (MOID) | 2.00 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 August 1998
- (9474) Cassadrury
- (9476) Vincenthuang
- (9477) Kefennell
- (10635) Chiragkumar
- (11189) Rabeaton
- (11369) Brazelton
- (11370) Nabrown
- (11371) Camley
- (11372) Aditisingh
- (11373) Carbonaro
- (11737) Gregneat
- (12545) Taniamurphy