Orbit and dynamics
Between its closest point (0.277 AU) and its farthest (1.704 AU), the heliocentric distance changes by 1.427 AU over every revolution.
One full revolution takes 0.99 yr (360 days), computed from the semi-major axis of 0.991 AU.
The high eccentricity (0.72) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.
A steep inclination of 22.69° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 74.2 km/s at perihelion and falls to 12.1 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 = 18.15 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.83 km.
Observation record and orbit quality
Astrometry from 1,321 individual observations underpins this orbit; the fit leaves an RMS residual of 0.43 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 |
|---|---|---|
| 2038-Jul-15 17:28 | 0.477037 AU 71363768 km |
32.50 km/s |
| 2039-Jul-12 10:26 | 0.435763 AU 65189202 km |
30.10 km/s |
| 2040-Jul-08 05:10 | 0.403491 AU 60361362 km |
27.73 km/s |
| 2041-Jul-05 02:47 | 0.383316 AU 57343295 km |
25.37 km/s |
| 2042-Jul-02 05:26 | 0.377751 AU 56510799 km |
23.02 km/s |
| 2043-Jun-29 19:18 | 0.387953 AU 58036939 km |
20.73 km/s |
| 2044-Jun-27 10:30 | 0.412836 AU 61759397 km |
18.63 km/s |
| 2045-Jun-28 10:23 | 0.449157 AU 67192858 km |
16.92 km/s |
| 2046-Jul-02 22:04 | 0.491241 AU 73488598 km |
16.17 km/s |
| 2068-Sep-18 02:51 | 0.497719 AU 74457740 km |
17.86 km/s |
| 2069-Sep-21 11:23 | 0.449815 AU 67291406 km |
17.80 km/s |
| 2070-Sep-24 18:28 | 0.396706 AU 59346316 km |
17.84 km/s |
| 2071-Sep-27 14:16 | 0.338748 AU 50675914 km |
18.13 km/s |
| 2072-Sep-28 18:37 | 0.277068 AU 41448802 km |
18.74 km/s |
| 2073-Sep-29 20:36 | 0.213831 AU 31988612 km |
19.81 km/s |
| 2074-Sep-29 20:57 | 0.153083 AU 22900875 km |
21.25 km/s |
| 2075-Sep-28 23:07 | 0.105789 AU 15825839 km |
23.02 km/s |
| 2076-Sep-26 08:34 | 0.097510 AU 14587319 km |
24.98 km/s |
| 2077-Sep-24 06:08 | 0.136604 AU 20435638 km |
27.07 km/s |
| 2078-Sep-21 19:08 | 0.196949 AU 29463177 km |
29.28 km/s |
| 2079-Sep-19 02:30 | 0.264005 AU 39494595 km |
31.58 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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