Orbit and dynamics
Between its closest point (1.032 AU) and its farthest (1.821 AU), the heliocentric distance changes by 0.789 AU over every revolution.
One full revolution takes 1.70 yr (622 days), computed from the semi-major axis of 1.426 AU.
An eccentricity of 0.277 makes the orbit moderately elongated.
A steep inclination of 40.63° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 33.1 km/s at perihelion and falls to 18.8 km/s at aphelion.
Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.
Size and surface
No direct size measurement is available; from an absolute magnitude of H = 21.05 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.22 km.
Observation record and orbit quality
Astrometry from 100 individual observations underpins this orbit; the fit leaves an RMS residual of 0.546 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 |
|---|---|---|
| 2036-Oct-15 18:12 | 0.231033 AU 34562094 km |
22.36 km/s |
| 2037-Mar-30 04:08 | 0.401104 AU 60004320 km |
20.84 km/s |
| 2049-Apr-04 02:23 | 0.479000 AU 71657454 km |
19.46 km/s |
| 2053-Oct-18 18:56 | 0.215670 AU 32263819 km |
20.69 km/s |
| 2054-Mar-30 03:09 | 0.466473 AU 69783429 km |
22.57 km/s |
| 2065-Oct-11 09:43 | 0.393844 AU 58918180 km |
25.34 km/s |
| 2066-Apr-01 09:53 | 0.409549 AU 61267645 km |
19.84 km/s |
| 2070-Oct-20 00:54 | 0.351726 AU 52617429 km |
20.10 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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