Near-Earth object / ID: 2004581
4581 Asclepius 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 189m - 423m across. It has been followed since 1989-03-31 across 424 recorded observations. Its next approach to Earth is 2029-May-02 17:42, passing at 31.409 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
0.004 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
8.32 km/s
Miss distance (lunar)
31.409 LD
Miss distance (km)
12,078,799 km
Physical characteristics
Perihelion
0.657 AU
Aphelion
1.385 AU
Orbital period
377.0 days
Inclination
4.926°
Eccentricity
0.356
Semi-major axis
1.021 AU
Est. diameter (min–max)
189m - 423m
Log scale · 1m – 100km
Absolute magnitude
20.7 H
Orbit class
APO
Observations used
424