(228409) Bobjensen Main-belt Asteroid
Discovered on 26 March 2001 by M. W. Buie at Kitt Peak.
Robert R. Jensen (b. 1951) is an American engineer specializing in radar system design, testing, integration and performance analysis, including with satellite communications systems. He worked on numerous missions, including TOPEX, GeoSat, NEAR, TIMED, and New Horizons.Naming citation (WGSBN Bull. 5, #4, 29), IAU / Minor Planet Center, via NASA/JPL
Where Bobjensen is today
Seen from above the solar system on 2026-10-14: Bobjensen is 2.74 au from the Sun and 3.59 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 228409 |
| Provisional designation | 2001 FM184 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.03 km (#10,554 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0700 |
| Absolute magnitude (H) | 15.26 |
| Orbital period | 4.97 years |
| Semi-major axis | 2.91 au |
| Perihelion – aphelion | 2.74 – 3.08 au |
| Eccentricity | 0.0576 |
| Inclination | 10.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Robert
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