SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 EW2

2022 EW2

2022 EW2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.122 AU it takes 1.19 yr to circle the Sun.

Apollo Observations: 26
Orbital Period · P
1.19 yr
v(q)
45 km/s
v(Q)
17.6 km/s
Diameter · ≈
0.02 km
TJ
5.47
Eccentricity · e
0.439

Orbit and dynamics

Between its closest point (0.63 AU) and its farthest (1.615 AU), the heliocentric distance changes by 0.985 AU over every revolution.

One full revolution takes 1.19 yr (434 days), computed from the semi-major axis of 1.122 AU.

The high eccentricity (0.439) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 0.91° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 45 km/s at perihelion and falls to 17.6 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 = 26.37 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

Astrometry from 26 individual observations underpins this orbit; the fit leaves an RMS residual of 0.586 arcseconds.

Condition code U = 8 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.122 AU
Eccentricity
0.439
Perihelion
0.63 AU
Aphelion
1.614558 AU
Inclination
0.91°
Orbital Period
— yr
Epoch
2459644.5
Mean Anomaly
55.43°

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
2054-Mar-16 21:47 0.265516 AU
39720651 km
23.24 km/s
2058-Aug-16 05:28 0.136034 AU
20350363 km
8.38 km/s
2060-Feb-27 19:45 0.004160 AU
622298 km
11.51 km/s
2064-Jul-28 03:23 0.088959 AU
13308106 km
19.92 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
26.37

Orbit Quality

RMS
0.58604
Condition
8
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

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