SpaceAtlas Space Object Data
NASA JPL SBDB · 2003 UB22

2003 UB22

2003 UB22 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.22 AU it takes 1.35 yr to circle the Sun.

Apollo Observations: 35
Orbital Period · P
1.35 yr
v(q)
33.9 km/s
v(Q)
21.4 km/s
Diameter · ≈
0.05 km
TJ
5.17
Eccentricity · e
0.2258

Orbit and dynamics

Between its closest point (0.945 AU) and its farthest (1.495 AU), the heliocentric distance changes by 0.55 AU over every revolution.

One full revolution takes 1.35 yr (492 days), computed from the semi-major axis of 1.22 AU.

An eccentricity of 0.226 makes the orbit moderately elongated.

The orbital plane is tilted 15.88° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.9 km/s at perihelion and falls to 21.4 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 = 24.3 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

Astrometry from 35 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5144 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
1.22 AU
Eccentricity
0.2258
Perihelion
0.945 AU
Aphelion
1.495476 AU
Inclination
15.88°
Orbital Period
— yr
Epoch
2452936.5
Mean Anomaly
39.39°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
24.3

Orbit Quality

RMS
0.51445
Condition
8
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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.