SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 PD229

Cameron-ISON

Cameron-ISON follows a distinctly cometary orbit: an eccentricity of 0.327 carries it from 4.832 AU at perihelion out to 9.522 AU at aphelion.

comet Observations: 110
Orbital Period · P
19.2 yr
v(q)
15.6 km/s
v(Q)
7.9 km/s
TJ
2.94
Eccentricity · e
0.3267

Orbit and dynamics

Between its closest point (4.832 AU) and its farthest (9.522 AU), the heliocentric distance changes by 4.69 AU over every revolution.

One full revolution takes 19.2 yr (7,023 days), computed from the semi-major axis of 7.177 AU.

An eccentricity of 0.327 makes the orbit moderately elongated.

Its inclination of 2.03° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 15.6 km/s at perihelion and falls to 7.9 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.94, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 110 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3452 arcseconds.

Condition code U = 4 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
7.177 AU
Eccentricity
0.3267
Perihelion
4.832 AU
Aphelion
9.521726 AU
Inclination
2.03°
Orbital Period
— yr
Epoch
2457316.5
Mean Anomaly
3.47°

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
0.34517
Condition
4
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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