(21498) Keenanferar Main-belt Asteroid
Discovered on 22 May 1998 by LINEAR at Socorro.
Keenan Joseph Ferar (b. 1988) was awarded second place in the 2006 Intel International Science and Engineering Fair for his microbiology team project. He attends the Oregon Episcopal School, Portland, Oregon, U.S.A.Naming citation (20060711/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Keenanferar is today
Seen from above the solar system on 2026-10-14: Keenanferar is 2.37 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21498 |
| Provisional designation | 1998 KQ2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.93 km (#12,916 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.386 |
| Absolute magnitude (H) | 13.81 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 2.02 – 2.52 au |
| Eccentricity | 0.110 |
| Inclination | 22.9° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Keenan
All asteroids named after someone called Keenan
Also discovered on 22 May 1998
- (9466) Shishir
- (11187) Richoliver
- (11730) Yanhua
- (11735) Isabellecohen
- (12104) Chesley
- (12106) Menghuan
- (12107) Reneebarcia
- (12108) Jamesaustin
- (12529) Reighard
- (12530) Richardson
- (12860) Turney
- (12861) Wacker