Near-Earth Object
2021 OD1
NASA ID: 54175300
2021 OD1 will pass Earth on 10 June 2027 at a distance of 164.33 lunar distances (LD) - about 63,167,420 km - travelling at 62,662 km/h. Its estimated diameter is between 6 and 13 metres, roughly the size of a double-decker bus (around 11 m long). NASA does not classify it as potentially hazardous.
Close Approach Date
10 June 2027
In 351 days
Miss Distance
164.33 LD
63,167,420 km
164 times the Moon's distance from Earth
Velocity
62,662 km/h
2.3 times the orbital speed of the International Space Station
Est. Diameter
6–13 m
Absolute Magnitude
H = 28.27
The brightness measure astronomers use to estimate size
Hazard Classification
Not Hazardous
The real orbit in 3D
The actual path of 2021 OD1 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.
Every recorded pass
Each dot is one close approach of 2021 OD1 to Earth between 1985 and 2066, from JPL's records. Lower means closer: a dot under the dashed line passed nearer than the Moon. The orange dot is the approach on this page.
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 →
