(541288) Rogerhaynes Main-belt Asteroid
Discovered on 2 December 2005 by Wasserman, L. H., Millis, R. L. at Kitt Peak.
Roger Haynes (b. 1964) has a distinguished career in astronomical instrumentation that includes technical contributions and managerial leadership at major research institutions including the Anglo-Australian Observatory (IRIS2 instrument), the Leibniz-Institut für Astrophysik Potsdam (4MOST instrument), and the Australian National University.Naming citation (WGSBN Bull. 5, #11, 5), IAU / Minor Planet Center, via NASA/JPL
Where Rogerhaynes is today
Seen from above the solar system on 2026-10-14: Rogerhaynes is 2.81 au from the Sun and 3.65 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 541288 |
| Provisional designation | 2011 ET81 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.84 |
| Orbital period | 5.24 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.66 – 3.38 au |
| Eccentricity | 0.119 |
| Inclination | 3.17° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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