Near-Earth object / ID: 2009856
9856 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 1km - 2.3km across. It has been followed since 1991-03-13 across 1365 recorded observations. Its next approach to Earth is 2028-Sep-10 00:20, passing at 37.621 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
0.023 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
17.97 km/s
Miss distance (lunar)
37.621 LD
Miss distance (km)
14,467,865 km
Physical characteristics
Perihelion
0.840 AU
Aphelion
3.647 AU
Orbital period
1227.5 days
Inclination
9.829°
Eccentricity
0.625
Semi-major axis
2.244 AU
Est. diameter (min–max)
1km - 2.3km
Log scale · 1m – 100km
Absolute magnitude
17.1 H
Orbit class
APO
Observations used
1,365