(134099) Rexengelhardt Main-belt Asteroid
Discovered on 11 December 2004 by CSS at Catalina.
Rex Engelhardt (b. 1959) is the KSC Launch Services Program Mission Manger for the OSIRIS-REx Asteroid Sample Return Mission. As a Mission Manager, he has led more than 10 missions since LSP was established in 1998. He supported many payload support jobs for NASA Kennedy Space Center and the Air Force.Naming citation (MPC batch dated 2016-08-18), IAU / Minor Planet Center, via NASA/JPL
Where Rexengelhardt is today
Seen from above the solar system on 2026-10-14: Rexengelhardt is 3.03 au from the Sun and 2.83 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 134099 |
| Provisional designation | 2004 XC125 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.09 |
| Orbital period | 5.49 years |
| Semi-major axis | 3.11 au |
| Perihelion – aphelion | 2.96 – 3.26 au |
| Eccentricity | 0.0481 |
| Inclination | 16.3° |
| Closest distance between its orbit and Earth's (MOID) | 2.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Rex
All asteroids named after someone called Rex