Near-Earth object / ID: 2138877
138877 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 1.2km - 2.7km across. It has been followed since 2000-11-06 across 1274 recorded observations. Its next approach to Earth is 2048-Apr-22 04:50, passing at 56.684 LD. It is not classified as a potentially hazardous asteroid.
Data source: NASA NeoWs API
Visualization: mesh render
Hazard analysis
PHA status
Not hazardous
Min. orbit intersection
0.102 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
15.37 km/s
Miss distance (lunar)
56.684 LD
Miss distance (km)
21,799,148 km
Physical characteristics
Perihelion
0.978 AU
Aphelion
3.302 AU
Orbital period
1143.6 days
Inclination
25.317°
Eccentricity
0.543
Semi-major axis
2.140 AU
Est. diameter (min–max)
1.2km - 2.7km
Log scale · 1m – 100km
Absolute magnitude
16.7 H
Orbit class
APO
Observations used
1,274