(21399) Bateman Main-belt Asteroid
Discovered on 20 March 1998 by LINEAR at Socorro.
Ailish Elizabeth Bateman (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for her chemistry project. She attends the Pierson High School, Sag Harbor, New York.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bateman is today
Seen from above the solar system on 2026-10-14: Bateman is 2.36 au from the Sun and 2.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21399 |
| Provisional designation | 1998 FG57 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.4 |
| Orbital period | 3.40 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 2.14 – 2.39 au |
| Eccentricity | 0.0548 |
| Inclination | 5.79° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 20 March 1998
- (8744) Cilla
- (8745) Delaney
- (8954) Baral
- (9126) Samcoulson
- (9243) Alag
- (9454) Ardeishar
- (11169) Alkon
- (11170) Bradenmilford
- (11173) Jayanderson
- (11174) Carandrews
- (11176) Batth
- (11685) Adamcurry