SpaceAtlas Space Object Data
NASA JPL SBDB · 2010 JC81

WISE

WISE follows a distinctly cometary orbit: an eccentricity of 0.777 carries it from 1.811 AU at perihelion out to 14.456 AU at aphelion.

comet Observations: 619
Orbital Period · P
23.2 yr
v(q)
29.5 km/s
v(Q)
3.7 km/s
TJ
1.87
Eccentricity · e
0.7774

Orbit and dynamics

Between its closest point (1.811 AU) and its farthest (14.456 AU), the heliocentric distance changes by 12.645 AU over every revolution.

One full revolution takes 23.2 yr (8,472 days), computed from the semi-major axis of 8.133 AU.

The high eccentricity (0.777) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 38.69° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 29.5 km/s at perihelion and falls to 3.7 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 1.87, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

Neither a measured diameter nor a reliable absolute magnitude is available for WISE, so its physical size remains unconstrained.

Observation record and orbit quality

Astrometry from 619 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6655 arcseconds.

Condition code U = 3 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
8.133 AU
Eccentricity
0.7774
Perihelion
1.811 AU
Aphelion
14.455594 AU
Inclination
38.69°
Orbital Period
— yr
Epoch
2455908.5
Mean Anomaly
9.79°

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
—

Orbit Quality

RMS
0.66549
Condition
3
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.