Orbit and dynamics
Between its closest point (0.983 AU) and its farthest (1.475 AU), the heliocentric distance changes by 0.492 AU over every revolution.
One full revolution takes 1.36 yr (498 days), computed from the semi-major axis of 1.229 AU.
An eccentricity of 0.2 makes the orbit moderately elongated.
Its inclination of 1.49° keeps it close to the plane of the ecliptic.
By the vis-viva equation its orbital speed rises to 32.9 km/s at perihelion and falls to 21.9 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 0.01 km, a value from direct size determination rather than from brightness alone.
A geometric albedo of 0.52 points to a comparatively bright, reflective surface.
Observation record and orbit quality
Astrometry from 85 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6115 arcseconds.
Condition code U = 2 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 |
|---|---|---|
| 2028-Mar-09 17:37 | 0.382625 AU 57239862 km |
6.24 km/s |
| 2028-Sep-20 14:44 | 0.351944 AU 52650015 km |
14.76 km/s |
| 2032-Jan-25 10:18 | 0.487169 AU 72879487 km |
8.26 km/s |
| 2035-Dec-17 06:24 | 0.458058 AU 68524548 km |
7.79 km/s |
| 2039-May-24 10:04 | 0.108143 AU 16177962 km |
7.59 km/s |
| 2039-Oct-21 01:40 | 0.271888 AU 40673858 km |
3.79 km/s |
| 2043-Mar-22 08:14 | 0.340882 AU 50995204 km |
5.35 km/s |
| 2043-Sep-16 05:13 | 0.244204 AU 36532405 km |
11.59 km/s |
| 2047-Feb-03 11:32 | 0.474638 AU 71004846 km |
8.05 km/s |
| 2050-Dec-28 01:21 | 0.477235 AU 71393340 km |
8.13 km/s |
| 2054-May-13 22:49 | 0.269991 AU 40390074 km |
12.36 km/s |
| 2054-Nov-12 20:42 | 0.351488 AU 52581802 km |
5.71 km/s |
| 2058-Apr-17 04:51 | 0.255872 AU 38277888 km |
3.12 km/s |
| 2058-Sep-05 02:18 | 0.087194 AU 13044037 km |
6.82 km/s |
| 2062-Feb-13 13:51 | 0.456775 AU 68332540 km |
7.71 km/s |
| 2066-Jan-04 11:07 | 0.487608 AU 72945061 km |
8.30 km/s |
| 2069-May-10 01:13 | 0.346451 AU 51828402 km |
14.61 km/s |
| 2069-Nov-20 17:40 | 0.380563 AU 56931480 km |
6.33 km/s |
| 2073-May-04 20:45 | 0.224579 AU 33596610 km |
1.35 km/s |
| 2073-Aug-30 20:16 | 0.048410 AU 7242091 km |
5.53 km/s |
| 2077-Feb-12 11:56 | 0.463063 AU 69273212 km |
7.78 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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