SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 EX

2022 EX

2022 EX belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.813 AU it takes 2.44 yr to circle the Sun.

Apollo Observations: 302
Orbital Period · P
2.44 yr
v(q)
37.1 km/s
v(Q)
13.2 km/s
Diameter · ≈
0.19 km
TJ
3.79
Eccentricity · e
0.4754

Orbit and dynamics

The path is an ellipse reaching 0.951 AU from the Sun at perihelion and 2.675 AU at aphelion, a radial span of 1.724 AU.

Applying Kepler's third law to a = 1.813 AU gives an orbital period of 2.44 yr, or about 892 days.

The high eccentricity (0.475) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 27.54° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 37.1 km/s at perihelion and falls to 13.2 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 = 21.4 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

The current orbit solution is based on 302 observations and has a weighted RMS residual of 0.4791 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

Semi-Major Axis
1.813 AU
Eccentricity
0.4754
Perihelion
0.951 AU
Aphelion
2.6749 AU
Inclination
27.54°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
281.35°

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
2044-Feb-19 08:11 0.101728 AU
15218322 km
16.55 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
21.4

Orbit Quality

RMS
0.47911
Condition
0
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.