Orbit and dynamics
Between its closest point (0.756 AU) and its farthest (1.44 AU), the heliocentric distance changes by 0.684 AU over every revolution.
One full revolution takes 1.15 yr (420 days), computed from the semi-major axis of 1.098 AU.
An eccentricity of 0.311 makes the orbit moderately elongated.
A steep inclination of 22.41° carries it well above and below the ecliptic plane.
By the vis-viva equation its orbital speed rises to 39.2 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
No direct size measurement is available; from an absolute magnitude of H = 20.7 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.26 km.
Observation record and orbit quality
Astrometry from 100 individual observations underpins this orbit; the fit leaves an RMS residual of 0.7215 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 |
|---|---|---|
| 2027-Feb-10 00:12 | 0.432379 AU 64682974 km |
22.70 km/s |
| 2028-May-19 15:00 | 0.360078 AU 53866830 km |
14.74 km/s |
| 2028-Sep-27 14:15 | 0.323076 AU 48331494 km |
12.63 km/s |
| 2035-Mar-07 16:51 | 0.218791 AU 32730659 km |
16.79 km/s |
| 2036-Sep-12 19:13 | 0.238462 AU 35673382 km |
13.67 km/s |
| 2043-Apr-10 13:02 | 0.231214 AU 34589157 km |
15.37 km/s |
| 2043-Oct-15 15:52 | 0.435094 AU 65089072 km |
12.91 km/s |
| 2044-Sep-11 17:20 | 0.360125 AU 53873910 km |
19.24 km/s |
| 2050-Feb-10 15:43 | 0.422685 AU 63232744 km |
22.44 km/s |
| 2051-May-22 12:49 | 0.365021 AU 54606335 km |
14.61 km/s |
| 2051-Sep-27 19:14 | 0.317968 AU 47567399 km |
12.62 km/s |
| 2058-Mar-08 20:48 | 0.212936 AU 31854717 km |
16.63 km/s |
| 2059-Sep-13 05:16 | 0.238291 AU 35647848 km |
13.84 km/s |
| 2066-Apr-13 03:20 | 0.240463 AU 35972739 km |
15.39 km/s |
| 2066-Oct-14 05:58 | 0.427866 AU 64007859 km |
12.91 km/s |
| 2067-Sep-13 00:34 | 0.375977 AU 56245353 km |
19.83 km/s |
| 2073-Feb-12 10:50 | 0.400703 AU 59944379 km |
21.82 km/s |
| 2074-May-26 18:55 | 0.374840 AU 56075301 km |
14.27 km/s |
| 2074-Sep-26 02:30 | 0.307414 AU 45988426 km |
12.62 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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