SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 WR

2022 WR

2022 WR belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.078 AU it takes 1.12 yr to circle the Sun.

Apollo Observations: 21
Orbital Period · P
1.12 yr
v(q)
35.1 km/s
v(Q)
23.4 km/s
Diameter · ≈
0.03 km
TJ
5.7
Eccentricity · e
0.199

Orbit and dynamics

Between its closest point (0.863 AU) and its farthest (1.293 AU), the heliocentric distance changes by 0.43 AU over every revolution.

One full revolution takes 1.12 yr (409 days), computed from the semi-major axis of 1.078 AU.

An eccentricity of 0.199 makes the orbit moderately elongated.

The orbital plane is tilted 11.16° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.1 km/s at perihelion and falls to 23.4 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 = 25.38 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 21 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3887 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
1.078 AU
Eccentricity
0.199
Perihelion
0.863 AU
Aphelion
1.292522 AU
Inclination
11.16°
Orbital Period
— yr
Epoch
2459900.5
Mean Anomaly
286.8°

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
2040-Nov-09 02:01 0.347403 AU
51970763 km
20.02 km/s
2042-May-04 11:24 0.149687 AU
22392850 km
5.74 km/s
2050-Nov-25 08:54 0.041503 AU
6208707 km
6.76 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
25.38

Orbit Quality

RMS
0.38867
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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