Orbit and dynamics
Between its closest point (0.704 AU) and its farthest (1.398 AU), the heliocentric distance changes by 0.694 AU over every revolution.
One full revolution takes 1.08 yr (394 days), computed from the semi-major axis of 1.051 AU.
An eccentricity of 0.33 makes the orbit moderately elongated.
The orbital plane is tilted 5.41° relative to the ecliptic.
By the vis-viva equation its orbital speed rises to 40.9 km/s at perihelion and falls to 20.6 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 2026 FS5, so its physical size remains unconstrained.
Observation record and orbit quality
Astrometry from 23 individual observations underpins this orbit; the fit leaves an RMS residual of 0.39 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 |
|---|---|---|
| 2037-Oct-05 13:33 | 0.180995 AU 27076504 km |
6.63 km/s |
| 2040-Mar-25 06:48 | 0.058449 AU 8743885 km |
12.19 km/s |
| 2050-Aug-26 08:54 | 0.147796 AU 22109982 km |
14.52 km/s |
| 2064-Aug-30 20:09 | 0.065289 AU 9767039 km |
11.59 km/s |
| 2067-Feb-21 18:36 | 0.192242 AU 28759017 km |
5.85 km/s |
| 2067-Mar-29 03:03 | 0.191398 AU 28632738 km |
5.64 km/s |
| 2078-Aug-30 06:15 | 0.076288 AU 11412460 km |
12.22 km/s |
Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.
Physical Parameters
Orbit Quality
Related Objects
Same object type
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