(160556) Greenaugh Main-belt Asteroid
Discovered on 14 September 1998 by LINEAR at Socorro.
Kevin Greenaugh (1956–2023) was an American nuclear engineer, Assistant Deputy Administrator for Strategic Partnerships at the National Nuclear Security Administration, and adjunct professor at Howard University. For Planetary Defense, he co-founded the NASA/NNSA working group and co-authored the U.S. National Preparedness Strategy and Action Plan.Naming citation (WGSBN Bull. 4, #13, 20), IAU / Minor Planet Center, via NASA/JPL
Where Greenaugh is today
Seen from above the solar system on 2026-10-14: Greenaugh is 2.62 au from the Sun and 3.09 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 160556 |
| Provisional designation | 1998 RR4 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.85 |
| Orbital period | 4.50 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.03 – 3.42 au |
| Eccentricity | 0.256 |
| Inclination | 17.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.07 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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