(231842) Graemekeleher Main-belt Asteroid
Discovered on 27 August 2000 by M. W. Buie at Cerro Tololo.
Graeme P. Keleher (b. 1992) is an American mission operations real-time flight controller. He provided critical support for both the Pluto System and Arrokoth flyby operations for the NASA New Horizons mission. Graeme started as an intern and became a full-time controller upon graduation.Naming citation (WGSBN Bull. 5, #4, 31), IAU / Minor Planet Center, via NASA/JPL
Where Graemekeleher is today
Seen from above the solar system on 2026-10-14: Graemekeleher is 2.52 au from the Sun and 2.94 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 231842 |
| Provisional designation | 2000 QW242 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.29 |
| Orbital period | 3.87 years |
| Semi-major axis | 2.46 au |
| Perihelion – aphelion | 2.18 – 2.75 au |
| Eccentricity | 0.115 |
| Inclination | 1.82° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 27 August 2000
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