(2860) Pasacentennium Main-belt Asteroid
Discovered on 8 October 1978 by E. F. Helin at Palomar.
Where Pasacentennium is today
Seen from above the solar system on 2026-10-14: Pasacentennium is 2.81 au from the Sun and 3.76 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2860 |
| Provisional designation | 1978 TA |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.77 km (#7,919 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.352 |
| Rotation period | 2.66 hours |
| Absolute magnitude (H) | 12.77 |
| Orbital period | 3.56 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 1.83 – 2.83 au |
| Eccentricity | 0.216 |
| Inclination | 22.7° |
| Closest distance between its orbit and Earth's (MOID) | 0.940 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.