Near-Earth object / ID: 2025143
25143 Itokawa is a near-Earth object of the APO orbit class — Near-Earth asteroid orbits which cross the Earth’s orbit similar to that of 1862 Apollo. Radar and photometric estimates put it between 374m - 836m across. It has been followed since 1998-09-19 across 1025 recorded observations. Its next approach to Earth is 2033-Mar-23 15:55, passing at 33.181 LD. JPL classifies it as a potentially hazardous asteroid, a label driven by its size and how close its orbit comes to ours — not by a predicted impact.
Data source: NASA NeoWs API
Visualization: mesh render
Hazard analysis
PHA status
Potentially hazardous
Min. orbit intersection
0.013 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
8.55 km/s
Miss distance (lunar)
33.181 LD
Miss distance (km)
12,760,286 km
Physical characteristics
Perihelion
0.953 AU
Aphelion
1.695 AU
Orbital period
556.5 days
Inclination
1.621°
Eccentricity
0.280
Semi-major axis
1.324 AU
Est. diameter (min–max)
374m - 836m
Log scale · 1m – 100km
Absolute magnitude
19.3 H
Orbit class
APO
Observations used
1,025