(6311) Porubcan Main-belt Asteroid
Discovered on 15 September 1990 by H. E. Holt at Palomar.
Where Porubcan is today
Seen from above the solar system on 2026-10-14: Porubcan is 2.57 au from the Sun and 3.55 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6311 |
| Provisional designation | 1990 RQ2 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 13.97 |
| Orbital period | 3.46 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 1.77 – 2.80 au |
| Eccentricity | 0.225 |
| Inclination | 5.17° |
| Closest distance between its orbit and Earth's (MOID) | 0.792 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 September 1990
- (5185) Alerossi
- (5681) Bakulev
- (6134) Kamagari
- (8498) Ufa
- (13049) Butov
- (15258) Alfilipenko
- (21043) Pascalwillis
- (30821) Chernetenko