SpaceAtlas Space Object Data
NASA JPL SBDB · 2003 H3

NEAT

NEAT follows a distinctly cometary orbit: an eccentricity of 1 carries it from 2.901 AU at perihelion out to 26,577 AU at aphelion.

comet Observations: 765
Orbital Period · P
1,532,101 yr
v(q)
24.7 km/s
v(Q)
0 km/s
TJ
1.48
Eccentricity · e
0.9998

Orbit and dynamics

The path is an ellipse reaching 2.901 AU from the Sun at perihelion and 26,577 AU at aphelion, a radial span of 26,574 AU.

Applying Kepler's third law to a = 13,290 AU gives an orbital period of 1,532,101 yr, or about 559,599,987 days.

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 42.81° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 24.7 km/s at perihelion and falls to 0 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 1.48, 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

The current orbit solution is based on 765 observations and has a weighted RMS residual of 0.6216 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
13290.0 AU
Eccentricity
0.9998
Perihelion
2.901 AU
Aphelion
26577.342 AU
Inclination
42.81°
Orbital Period
— yr
Epoch
2452852.5
Mean Anomaly
0.0°

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
0.62164
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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