(129100) Aaronammons Main-belt Asteroid
Discovered on 2 December 2004 by CSS at Catalina.
Aaron Ammons (b. 1970) is the Command And Data Handling (C&DH) Certified Principal Engineer Lead for the OSIRIS-REx Asteroid Sample Return Mission. He was a team member to the Advanced Programs Low Power Avionics study and on the C&DH team for the GRAIL mission.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL
Where Aaronammons is today
Seen from above the solar system on 2026-10-14: Aaronammons is 2.60 au from the Sun and 1.63 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 129100 |
| Provisional designation | 2004 XY4 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 6.80 hours |
| Absolute magnitude (H) | 15.59 |
| Orbital period | 4.46 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.58 – 2.84 au |
| Eccentricity | 0.0486 |
| Inclination | 2.82° |
| Closest distance between its orbit and Earth's (MOID) | 1.59 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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Also discovered on 2 December 2004
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