(129985) Jimfreemantle Main-belt Asteroid
Discovered on 31 October 1999 by CSS at Catalina.
Jim Freemantle (b. 1958) is the Project Manager for the OLA Science Team on the OSIRIS-REx Asteroid Sample Return Mission. He was also the Project Manager for the Canadian MET Sensor on board the Phoenix Mars Lander. He has had a long career using remote sensing to monitor environmental change.Naming citation (MPC batch dated 2016-11-14), IAU / Minor Planet Center, via NASA/JPL
Where Jimfreemantle is today
Seen from above the solar system on 2026-10-14: Jimfreemantle is 2.58 au from the Sun and 3.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 129985 |
| Provisional designation | 1999 UP51 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.51 |
| Orbital period | 4.33 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.41 – 2.91 au |
| Eccentricity | 0.0942 |
| Inclination | 10.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.42 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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All asteroids named after someone called Jim
Also discovered on 31 October 1999
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