Near-Earth object / ID: 2143404
143404 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 1.1km - 2.4km across. It has been followed since 1981-02-28 across 1650 recorded observations. Its next approach to Earth is 2028-Jun-18 19:10, passing at 29.583 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
0.018 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
8.81 km/s
Miss distance (lunar)
29.583 LD
Miss distance (km)
11,376,789 km
Physical characteristics
Perihelion
0.772 AU
Aphelion
3.163 AU
Orbital period
1007.8 days
Inclination
2.664°
Eccentricity
0.608
Semi-major axis
1.967 AU
Est. diameter (min–max)
1.1km - 2.4km
Log scale · 1m – 100km
Absolute magnitude
16.9 H
Orbit class
APO
Observations used
1,650