(21517) Dobi Main-belt Asteroid
Discovered on 23 May 1998 by LINEAR at Socorro.
Kledin Dobi (b. 1988) was awarded first place and Best in Category in the 2005 Intel International Science and Engineering Fair for his mathematics project. He attends the Julia R. Masterman High School, Philadelphia, Pennsylvania, U.S.A.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Dobi is today
Seen from above the solar system on 2026-10-14: Dobi is 1.95 au from the Sun and 2.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21517 |
| Provisional designation | 1998 KS52 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.29 km (#14,518 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.259 |
| Absolute magnitude (H) | 14.94 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 1.93 – 2.79 au |
| Eccentricity | 0.183 |
| Inclination | 7.74° |
| Closest distance between its orbit and Earth's (MOID) | 0.933 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 May 1998
- (12864) Ryandrake
- (18730) Wingip
- (18731) Vil'bakirov
- (19494) Gerbs
- (19495) Terentyeva
- (19500) Hillaryfultz
- (20366) Bonev
- (20367) Erikagibb
- (20382) Hiroshinaraoka
- (20383) Hirotakasawada
- (20384) Hongsuhyim
- (20385) Horiuchi