Near-Earth object / ID: 2004015
4015 Wilson-Harrington 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 1.6km - 3.5km across. It has been followed since 1949-11-19 across 1522 recorded observations. Its next approach to Earth is 2028-Nov-12 16:17, passing at 629.871 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
0.043 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
5.06 km/s
Miss distance (lunar)
629.871 LD
Miss distance (km)
242,229,806 km
Physical characteristics
Perihelion
0.970 AU
Aphelion
4.284 AU
Orbital period
1554.9 days
Inclination
2.798°
Eccentricity
0.631
Semi-major axis
2.627 AU
Est. diameter (min–max)
1.6km - 3.5km
Log scale · 1m – 100km
Absolute magnitude
16.2 H
Orbit class
APO
Observations used
1,522