(12115) Robertgrimm Outer Main-belt Asteroid
Discovered on 16 September 1998 by CSS at Catalina.
Robert Grimm (b. 1960) is a planetary geophysicist. His thermal models led to the first mathematical representations of fluid flow on meteorite parent bodies and to a greater understanding of the thermal and collisional evolution of minor planets, including the heliocentric zonation of the main belt.Naming citation (20100330/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Robertgrimm is today
Seen from above the solar system on 2026-10-14: Robertgrimm is 3.13 au from the Sun and 4.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12115 |
| Provisional designation | 1998 SD2 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 20.3 km (#2,173 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0820 |
| Rotation period | 23.1 hours |
| Absolute magnitude (H) | 12.17 |
| Orbital period | 5.82 years |
| Semi-major axis | 3.24 au |
| Perihelion – aphelion | 2.98 – 3.49 au |
| Eccentricity | 0.0780 |
| Inclination | 17.8° |
| Closest distance between its orbit and Earth's (MOID) | 2.00 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
- (1955) McMath
- (3514) Hooke
- (3875) Staehle
- (4564) Clayton
- (4809) Robertball
- (5109) Robertmiller
- (5308) Hutchison
- (5477) Holmes
- (5585) Parks
- (5636) Jacobson
- (5739) Robertburns
- (5817) Robertfrazer
All asteroids named after someone called Robert
Also discovered on 16 September 1998
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- (14141) Demeautis
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