SpaceAtlas Space Object Data
NASA JPL SBDB · 1937 D1

Wilk

Wilk follows a distinctly cometary orbit: an eccentricity of 0.981 carries it from 0.619 AU at perihelion out to 63.32 AU at aphelion.

comet Observations: 17
Orbital Period · P
181 yr
v(q)
53.3 km/s
v(Q)
0.5 km/s
TJ
1.04
Eccentricity · e
0.9806

Orbit and dynamics

The path is an ellipse reaching 0.619 AU from the Sun at perihelion and 63.32 AU at aphelion, a radial span of 62.701 AU.

Applying Kepler's third law to a = 31.97 AU gives an orbital period of 181 yr, or about 66,024 days.

The high eccentricity (0.981) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 26.01° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 53.3 km/s at perihelion and falls to 0.5 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Its Tisserand parameter with respect to Jupiter is T_J = 1.04, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 17 observations and has a weighted RMS residual of 0.7264 arcseconds.

Condition code U = 7 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
31.97 AU
Eccentricity
0.9806
Perihelion
0.619 AU
Aphelion
63.319782 AU
Inclination
26.01°
Orbital Period
— yr
Epoch
2428609.5
Mean Anomaly
0.13°

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
0.72642
Condition
7
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.

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