(25549) Jonsauer Main-belt Asteroid
Discovered on 10 December 1999 by LINEAR at Socorro.
Jonothon Sauer mentored a finalist in the 2009 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the William Mason High School, Mason, Ohio.Naming citation (20090311/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jonsauer is today
Seen from above the solar system on 2026-10-14: Jonsauer is 2.11 au from the Sun and 2.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25549 |
| Provisional designation | 1999 XZ167 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.07 km (#10,480 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0690 |
| Rotation period | 2.12 hours |
| Absolute magnitude (H) | 15.25 |
| Orbital period | 3.75 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.10 – 2.72 au |
| Eccentricity | 0.128 |
| Inclination | 5.11° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 10 December 1999
- (14684) Reyes
- (16147) Jeanli
- (17192) Loharu
- (18880) Toddblumberg
- (20732) Snedeker
- (20733) Sophiejacquinod
- (20734) Sriramsaran
- (20735) Stetzler
- (20736) Sultana
- (23102) Dayanli
- (24274) Alliswheeler
- (24277) Schoch