Orbit and dynamics
The path is an ellipse reaching 0.946 AU from the Sun at perihelion and 1.648 AU at aphelion, a radial span of 0.702 AU.
Applying Kepler's third law to a = 1.297 AU gives an orbital period of 1.48 yr, or about 540 days.
An eccentricity of 0.27 makes the orbit moderately elongated.
Its inclination of 4.03° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 34.5 km/s at perihelion and falls to 19.8 km/s at aphelion.
Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.
Size and surface
Neither a measured diameter nor a reliable absolute magnitude is available for 2017 AZ3, so its physical size remains unconstrained.
Observation record and orbit quality
The current orbit solution is based on 34 observations and has a weighted RMS residual of 0.5304 arcseconds.
Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.
About these computed values
Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.
Orbital Parameters
Orbit diagram
The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.
3D orbit (interactive)
Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.
Close approaches
Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).
| Date (UTC) | Miss distance | Velocity |
|---|---|---|
| 2041-Oct-12 14:57 | 0.450653 AU 67416709 km |
7.34 km/s |
| 2042-Apr-29 17:33 | 0.359910 AU 53841763 km |
18.61 km/s |
| 2045-Apr-12 07:47 | 0.089065 AU 13323879 km |
10.01 km/s |
| 2050-Dec-19 00:45 | 0.141606 AU 21183999 km |
11.34 km/s |
| 2051-May-26 18:29 | 0.337385 AU 50472121 km |
5.20 km/s |
| 2053-Dec-04 02:33 | 0.454705 AU 68022917 km |
19.39 km/s |
| 2054-Jun-20 16:03 | 0.480213 AU 71838860 km |
7.39 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
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