Near-Earth object / ID: 2004769
4769 Castalia 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 888m - 2km across. It has been followed since 1989-08-01 across 746 recorded observations. Its next approach to Earth is 2027-Apr-04 03:42, passing at 50.113 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
0.020 AU
Orbit uncertainty
0 / 9 (well determined)
Sentry monitoring
Not on the Sentry risk list
Orbital parameters
Next closest approach
Date
Relative velocity
13.76 km/s
Miss distance (lunar)
50.113 LD
Miss distance (km)
19,272,095 km
Physical characteristics
Perihelion
0.549 AU
Aphelion
1.577 AU
Orbital period
400.4 days
Inclination
8.885°
Eccentricity
0.483
Semi-major axis
1.063 AU
Est. diameter (min–max)
888m - 2km
Log scale · 1m – 100km
Absolute magnitude
17.4 H
Orbit class
APO
Observations used
746