Near-Earth object / ID: 2164400
164400 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 897m - 2km across. It has been followed since 1978-08-24 across 2118 recorded observations. Its next approach to Earth is 2040-Sep-25 06:06, passing at 49.237 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
0.050 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
13.57 km/s
Miss distance (lunar)
49.237 LD
Miss distance (km)
18,935,007 km
Physical characteristics
Perihelion
0.881 AU
Aphelion
2.432 AU
Orbital period
778.8 days
Inclination
6.623°
Eccentricity
0.468
Semi-major axis
1.657 AU
Est. diameter (min–max)
897m - 2km
Log scale · 1m – 100km
Absolute magnitude
17.4 H
Orbit class
APO
Observations used
2,118