SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 S2

PANSTARRS

PANSTARRS follows a distinctly cometary orbit: an eccentricity of 0.207 carries it from 3.755 AU at perihelion out to 5.711 AU at aphelion.

comet Observations: 29
Orbital Period · P
10.3 yr
v(q)
16.9 km/s
v(Q)
11.1 km/s
TJ
2.93
Eccentricity · e
0.2067

Orbit and dynamics

The path is an ellipse reaching 3.755 AU from the Sun at perihelion and 5.711 AU at aphelion, a radial span of 1.956 AU.

Applying Kepler's third law to a = 4.733 AU gives an orbital period of 10.3 yr, or about 3,761 days.

An eccentricity of 0.207 makes the orbit moderately elongated.

The orbital plane is tilted 10.47° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 16.9 km/s at perihelion and falls to 11.1 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.93, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 29 observations and has a weighted RMS residual of 0.4539 arcseconds.

Condition code U = 5 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
4.733 AU
Eccentricity
0.2067
Perihelion
3.755 AU
Aphelion
5.711311 AU
Inclination
10.47°
Orbital Period
— yr
Epoch
2458738.5
Mean Anomaly
19.44°

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
0.45386
Condition
5
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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