Near-Earth object / ID: 2177651
177651 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 841m - 1.9km across. It has been followed since 1997-12-26 across 926 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
0.496 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)
841m - 1.9km
Log scale · 1m – 100km
Absolute magnitude
17.5 H
Orbit class
Perihelion
0.347 AU
Aphelion
1.961 AU
Orbital period
453.0 days
Inclination
42.402°
Eccentricity
0.699
Semi-major axis
1.154 AU
APO
Observations used
926