(25152) Toplis Main-belt Asteroid
Discovered on 16 September 1998 by LONEOS at Anderson Mesa.
Michael J. Toplis (b. 1969) is a geochemist at the University of Toulouse. Combining data returned by the Dawn mission with estimates for the starting chondritic composition of Vesta and HED meteorites, he has developed models for Vesta's interior structure and evolution.Naming citation (MPC batch dated 2014-07-12), IAU / Minor Planet Center, via NASA/JPL
Where Toplis is today
Seen from above the solar system on 2026-10-14: Toplis is 2.55 au from the Sun and 1.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 25152 |
| Provisional designation | 1998 SX53 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.65 km (#13,565 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.191 |
| Rotation period | 11.4 hours |
| Absolute magnitude (H) | 14.48 |
| Orbital period | 4.59 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.53 – 2.99 au |
| Eccentricity | 0.0835 |
| Inclination | 8.85° |
| Closest distance between its orbit and Earth's (MOID) | 1.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Michael
Also discovered on 16 September 1998
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