Near-Earth object / ID: 2164221
164221 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 218m - 488m across. It has been followed since 2002-06-05 across 204 recorded observations. Its next approach to Earth is 2053-Feb-07 06:40, passing at 29.180 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
0.219 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
3.91 km/s
Miss distance (lunar)
29.180 LD
Miss distance (km)
11,221,671 km
Physical characteristics
Perihelion
1.196 AU
Aphelion
1.814 AU
Orbital period
674.5 days
Inclination
6.483°
Eccentricity
0.205
Semi-major axis
1.505 AU
Est. diameter (min–max)
218m - 488m
Log scale · 1m – 100km
Absolute magnitude
20.4 H
Orbit class
AMO
Observations used
204