(250370) Obertocitterio Main-belt Asteroid
Discovered on 12 October 2003 by F. Bernardi at Mauna Kea.
Oberto Citterio (b. 1933) is an astronomer at the Italian National Institute for Astrophysics. He has made important contributions in the field of astronomical optics and instrumentation from infrared to γ-rays, with particular reference to the X-ray optics technology used for many space projects.Naming citation (WGSBN Bull. 1, #6, 6), IAU / Minor Planet Center, via NASA/JPL
Where Obertocitterio is today
Seen from above the solar system on 2026-10-14: Obertocitterio is 2.87 au from the Sun and 3.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 250370 |
| Provisional designation | 2003 TK4 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.23 |
| Orbital period | 3.51 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 1.69 – 2.93 au |
| Eccentricity | 0.269 |
| Inclination | 23.1° |
| Closest distance between its orbit and Earth's (MOID) | 0.820 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.