SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 EO22

2017 EO22

2017 EO22 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.899 AU once every 2.62 yr.

Amor Observations: 38
Orbital Period · P
2.62 yr
v(q)
30.3 km/s
v(Q)
15.4 km/s
Diameter · ≈
0.14 km
TJ
3.83
Eccentricity · e
0.3251

Orbit and dynamics

Between its closest point (1.282 AU) and its farthest (2.516 AU), the heliocentric distance changes by 1.234 AU over every revolution.

One full revolution takes 2.62 yr (956 days), computed from the semi-major axis of 1.899 AU.

An eccentricity of 0.325 makes the orbit moderately elongated.

The orbital plane is tilted 17.8° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.3 km/s at perihelion and falls to 15.4 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 = 22.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.14 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5207 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

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

Semi-Major Axis
1.899 AU
Eccentricity
0.3251
Perihelion
1.282 AU
Aphelion
2.516365 AU
Inclination
17.8°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
206.11°

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 distanceVelocity
2038-Mar-20 08:46 0.427528 AU
63957332 km
9.15 km/s
2051-Feb-26 01:22 0.336226 AU
50298679 km
9.33 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
22.1

Orbit Quality

RMS
0.52069
Condition
6
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. 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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.