Near-Earth object / ID: 2138947
138947 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 456m - 1km across. It has been followed since 2001-01-23 across 538 recorded observations. Its next approach to Earth is 2027-Jul-17 08:14, passing at 72.607 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
0.181 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
9.99 km/s
Miss distance (lunar)
72.607 LD
Miss distance (km)
27,922,446 km
Physical characteristics
Perihelion
0.835 AU
Aphelion
1.403 AU
Orbital period
432.3 days
Inclination
12.846°
Eccentricity
0.254
Semi-major axis
1.119 AU
Est. diameter (min–max)
456m - 1km
Log scale · 1m – 100km
Absolute magnitude
18.8 H
Orbit class
APO
Observations used
538