(3028) Zhangguoxi Main-belt Asteroid
Discovered on 9 October 1978 by Purple Mountain Observatory at Nanking.
Where Zhangguoxi is today
Seen from above the solar system on 2026-10-14: Zhangguoxi is 3.03 au from the Sun and 2.87 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3028 |
| Provisional designation | 1978 TA2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 25.6 km (#1,649 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.142 |
| Rotation period | 4.83 hours |
| Spectral type | K |
| Absolute magnitude (H) | 10.86 |
| Orbital period | 5.24 years |
| Semi-major axis | 3.02 au |
| Perihelion – aphelion | 2.92 – 3.11 au |
| Eccentricity | 0.0314 |
| Inclination | 9.51° |
| Closest distance between its orbit and Earth's (MOID) | 1.92 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.