Near-Earth object / ID: 2161998
161998 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 806m - 1.8km across. It has been followed since 1988-05-22 across 509 recorded observations. Its next approach to Earth is 2142-Nov-18 00:17, passing at 15.828 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
0.278 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
7.32 km/s
Miss distance (lunar)
15.828 LD
Miss distance (km)
6,087,081 km
Physical characteristics
Perihelion
1.275 AU
Aphelion
3.019 AU
Orbital period
1148.9 days
Inclination
8.227°
Eccentricity
0.406
Semi-major axis
2.147 AU
Est. diameter (min–max)
806m - 1.8km
Log scale · 1m – 100km
Absolute magnitude
17.6 H
Orbit class
AMO
Observations used
509