Near-Earth object / ID: 2016657
16657 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 1.3km - 2.9km across. It has been followed since 1993-10-23 across 1001 recorded observations. 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
0.253 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Close approach
No approaches to Earth on record.
Physical characteristics
Est. diameter (min–max)
1.3km - 2.9km
Log scale · 1m – 100km
Absolute magnitude
16.6 H
Orbit class
Perihelion
1.228 AU
Aphelion
3.326 AU
Orbital period
1254.9 days
Inclination
24.941°
Eccentricity
0.461
Semi-major axis
2.277 AU
AMO
Observations used
1,001