(4128) UKSTU Main-belt Asteroid
Discovered on 28 January 1988 by R. H. McNaught at Siding Spring.
Where UKSTU is today
Seen from above the solar system on 2026-10-14: UKSTU is 2.57 au from the Sun and 1.69 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4128 |
| Provisional designation | 1988 BM5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.54 km (#11,554 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.236 |
| Absolute magnitude (H) | 14.27 |
| Orbital period | 4.08 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 2.19 – 2.92 au |
| Eccentricity | 0.143 |
| Inclination | 12.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.