Near-Earth Object
2024 UC3
NASA ID: 54495433
2024 UC3 will pass Earth on 8 October 2026 at a distance of 142.28 lunar distances (LD) - about 54,693,318 km - travelling at 64,029 km/h. Its estimated diameter is between 21 and 47 metres, roughly the size of a double-decker bus (around 11 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
8 October 2026
In 109 days
Miss Distance
142.28 LD
54,693,318 km
142 times the Moon's distance from Earth
Velocity
64,029 km/h
2.3 times the orbital speed of the International Space Station
Est. Diameter
21–47 m
Absolute Magnitude
H = 25.52
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2024 UC3 around the Sun, computed from JPL orbital elements. Drag to rotate, scroll to zoom, and use the time controls to run the orbit forwards or back.
Size Comparison
Reading the Numbers
- A lunar distance (LD) is the average gap between Earth and the Moon, about 384,400 km. It is the standard yardstick for close approaches. Read more →
- Diameter estimates come from brightness. A dark surface reflects less light than a bright one, so the true size can sit anywhere in the quoted range. Read more →
- Potentially hazardous is a watch-list label based on size and orbital proximity. It does not mean an impact is expected. Read more →
