(542561) Ritajochen Main-belt Asteroid
Discovered on 12 March 2013 by J. Jahn at iTelescope.
Named by the discoverer in memory of his parents Rita (1932–2015) and Jochen Jahn (1932–2017) in thankful recognition of their efforts and sacrifices to give their children a good start in their lives.Naming citation (WGSBN Bull. 1, #12, 11), IAU / Minor Planet Center, via NASA/JPL
Where Ritajochen is today
Seen from above the solar system on 2026-10-14: Ritajochen is 2.86 au from the Sun and 2.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 542561 |
| Provisional designation | 2013 EB105 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.75 |
| Orbital period | 4.14 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 1.88 – 3.28 au |
| Eccentricity | 0.272 |
| Inclination | 14.3° |
| Closest distance between its orbit and Earth's (MOID) | 0.870 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.