SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 S1

ISON

ISON is catalogued in the JPL Small-Body Database as a comet object; the orbital elements available for it are listed below.

comet Observations: 6,684
Eccentricity · e
1.0

Orbit and dynamics

Between its closest point (0.012 AU) and its farthest (-4,894.0 AU), the heliocentric distance changes by -4,894.0 AU over every revolution.

The high eccentricity (1) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 62.16° carries it well above and below the ecliptic plane.

Size and surface

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

Observation record and orbit quality

Astrometry from 6,684 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5718 arcseconds.

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
-2447.0 AU
Eccentricity
1.0
Perihelion
0.012 AU
Aphelion
-4894.0 AU
Inclination
62.16°
Orbital Period
— yr
Epoch
2456413.5
Mean Anomaly
0.0°

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
0.57181
Condition
—
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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