Near-Earth object / ID: 2139211
139211 is a near-Earth object of the AMO orbit class — Near-Earth asteroid orbits similar to that of 1221 Amor. Radar and photometric estimates put it between 742m - 1.7km across. It has been followed since 1999-09-07 across 252 recorded observations. Its next approach to Earth is 2034-Mar-06 05:43, passing at 52.129 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
0.026 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
16.58 km/s
Miss distance (lunar)
52.129 LD
Miss distance (km)
20,047,246 km
Physical characteristics
Perihelion
1.019 AU
Aphelion
2.700 AU
Orbital period
926.4 days
Inclination
26.058°
Eccentricity
0.452
Semi-major axis
1.860 AU
Est. diameter (min–max)
742m - 1.7km
Log scale · 1m – 100km
Absolute magnitude
17.8 H
Orbit class
AMO
Observations used
252