Orbit and dynamics
Between its closest point (0.783 AU) and its farthest (1.211 AU), the heliocentric distance changes by 0.428 AU over every revolution.
One full revolution takes 1.00 yr (364 days), computed from the semi-major axis of 0.997 AU.
An eccentricity of 0.215 makes the orbit moderately elongated.
A steep inclination of 27.2° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 37.1 km/s at perihelion and falls to 24 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
No direct size measurement is available; from an absolute magnitude of H = 24.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.
Observation record and orbit quality
Astrometry from 103 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5125 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 |
|---|---|---|
| 2026-Dec-18 16:48 | 0.138539 AU 20725130 km |
17.52 km/s |
| 2027-Dec-18 02:08 | 0.166671 AU 24933587 km |
18.08 km/s |
| 2028-Dec-16 10:15 | 0.195914 AU 29308374 km |
18.67 km/s |
| 2029-Dec-15 16:00 | 0.226439 AU 33874791 km |
19.31 km/s |
| 2030-Dec-14 20:26 | 0.258226 AU 38629986 km |
20.02 km/s |
| 2031-Dec-14 00:24 | 0.290354 AU 43436341 km |
20.75 km/s |
| 2032-Dec-12 01:59 | 0.322940 AU 48311081 km |
21.50 km/s |
| 2033-Dec-11 02:50 | 0.355927 AU 53245917 km |
22.31 km/s |
| 2034-Dec-10 03:55 | 0.389244 AU 58230137 km |
23.14 km/s |
| 2035-Dec-09 03:31 | 0.422512 AU 63206970 km |
23.97 km/s |
| 2036-Dec-07 02:21 | 0.455832 AU 68191496 km |
24.84 km/s |
| 2037-Dec-06 01:43 | 0.489249 AU 73190545 km |
25.72 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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