Near-Earth object / ID: 2171576
171576 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 488m - 1.1km across. It has been followed since 1999-11-07 across 603 recorded observations. Its next approach to Earth is 2034-Oct-17 13:36, passing at 63.629 LD. JPL classifies it as a potentially hazardous asteroid, a label driven by its size and how close its orbit comes to ours — not by a predicted impact.
Data source: NASA NeoWs API
Visualization: mesh render
Hazard analysis
PHA status
Potentially hazardous
Min. orbit intersection
0.003 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
16.50 km/s
Miss distance (lunar)
63.629 LD
Miss distance (km)
24,469,974 km
Physical characteristics
Perihelion
0.452 AU
Aphelion
1.719 AU
Orbital period
413.3 days
Inclination
17.274°
Eccentricity
0.584
Semi-major axis
1.086 AU
Est. diameter (min–max)
488m - 1.1km
Log scale · 1m – 100km
Absolute magnitude
18.7 H
Orbit class
APO
Observations used
603