SpaceAtlas Space Object Data
NASA JPL SBDB · 444P

WISE-PANSTARRS

WISE-PANSTARRS follows a distinctly cometary orbit: an eccentricity of 0.57 carries it from 1.473 AU at perihelion out to 5.383 AU at aphelion.

comet Observations: 247
Orbital Period · P
6.35 yr
v(q)
30.8 km/s
v(Q)
8.4 km/s
TJ
2.75
Eccentricity · e
0.5703

Orbit and dynamics

Between its closest point (1.473 AU) and its farthest (5.383 AU), the heliocentric distance changes by 3.91 AU over every revolution.

One full revolution takes 6.35 yr (2,318 days), computed from the semi-major axis of 3.428 AU.

The high eccentricity (0.57) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 22.12° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 30.8 km/s at perihelion and falls to 8.4 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.75, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 247 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3474 arcseconds.

Condition code U = 2 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
3.428 AU
Eccentricity
0.5703
Perihelion
1.473 AU
Aphelion
5.382988 AU
Inclination
22.12°
Orbital Period
— yr
Epoch
2459649.5
Mean Anomaly
341.15°

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
0.34736
Condition
2
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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