Orbit and dynamics
Between its closest point (0.988 AU) and its farthest (1.509 AU), the heliocentric distance changes by 0.521 AU over every revolution.
One full revolution takes 1.40 yr (510 days), computed from the semi-major axis of 1.249 AU.
An eccentricity of 0.208 makes the orbit moderately elongated.
A steep inclination of 22.88° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 32.9 km/s at perihelion and falls to 21.6 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
The measured diameter is 0.36 km, a value from direct size determination rather than from brightness alone.
Its geometric albedo of 0.055 indicates a very dark, carbonaceous-type surface.
Observation record and orbit quality
Astrometry from 107 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5661 arcseconds.
Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.
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 |
|---|---|---|
| 2031-Mar-30 04:12 | 0.233997 AU 35005447 km |
12.45 km/s |
| 2031-Sep-10 14:35 | 0.115624 AU 17297111 km |
12.49 km/s |
| 2038-Apr-02 22:02 | 0.247525 AU 37029249 km |
13.65 km/s |
| 2038-Sep-11 09:34 | 0.217739 AU 32573349 km |
11.65 km/s |
| 2045-Apr-04 03:08 | 0.328923 AU 49206114 km |
15.93 km/s |
| 2045-Sep-17 12:32 | 0.354823 AU 53080838 km |
11.62 km/s |
| 2052-Apr-02 19:25 | 0.452952 AU 67760583 km |
19.18 km/s |
| 2052-Oct-02 01:57 | 0.489151 AU 73175953 km |
11.43 km/s |
| 2063-Mar-06 15:11 | 0.443791 AU 66390168 km |
12.03 km/s |
| 2063-Sep-20 14:34 | 0.439414 AU 65735357 km |
20.96 km/s |
| 2070-Mar-16 04:14 | 0.356004 AU 53257453 km |
11.98 km/s |
| 2070-Sep-15 14:02 | 0.280987 AU 42035098 km |
17.26 km/s |
| 2077-Mar-24 02:03 | 0.277786 AU 41556175 km |
12.03 km/s |
| 2077-Sep-11 19:49 | 0.145929 AU 21830706 km |
14.31 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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