Near-Earth Object
2024 FF4
NASA ID: 54432231
2024 FF4 will pass Earth on 21 March 2027 at a distance of 152.48 lunar distances (LD) - about 58,613,374 km - travelling at 92,514 km/h. Its estimated diameter is between 38 and 86 metres, roughly the size of a football pitch (around 105 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
21 March 2027
In 273 days
Miss Distance
152.48 LD
58,613,374 km
152 times the Moon's distance from Earth
Velocity
92,514 km/h
3.4 times the orbital speed of the International Space Station
Est. Diameter
38–86 m
Absolute Magnitude
H = 24.2
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2024 FF4 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 →
