SpaceAtlas Space Object Data
NASA JPL SBDB · 2003 E1

NEAT

NEAT follows a distinctly cometary orbit: an eccentricity of 0.764 carries it from 3.245 AU at perihelion out to 24.214 AU at aphelion.

comet Observations: 238
Orbital Period · P
50.9 yr
v(q)
22 km/s
v(Q)
2.9 km/s
TJ
2.13
Eccentricity · e
0.7636

Orbit and dynamics

Between its closest point (3.245 AU) and its farthest (24.214 AU), the heliocentric distance changes by 20.969 AU over every revolution.

One full revolution takes 50.9 yr (18,582 days), computed from the semi-major axis of 13.73 AU.

The high eccentricity (0.764) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 33.54° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 22 km/s at perihelion and falls to 2.9 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.13, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 238 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6508 arcseconds.

Condition code U = 3 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
13.73 AU
Eccentricity
0.7636
Perihelion
3.245 AU
Aphelion
24.214228 AU
Inclination
33.54°
Orbital Period
— yr
Epoch
2452925.5
Mean Anomaly
357.6°

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
0.65082
Condition
3
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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