SpaceAtlas Space Object Data
NASA JPL SBDB · 395P

Catalina-NEAT

Catalina-NEAT follows a distinctly cometary orbit: an eccentricity of 0.382 carries it from 4.065 AU at perihelion out to 9.093 AU at aphelion.

comet Observations: 810
Orbital Period · P
16.9 yr
v(q)
17.4 km/s
v(Q)
7.8 km/s
TJ
2.87
Eccentricity · e
0.3821

Orbit and dynamics

The path is an ellipse reaching 4.065 AU from the Sun at perihelion and 9.093 AU at aphelion, a radial span of 5.028 AU.

Applying Kepler's third law to a = 6.579 AU gives an orbital period of 16.9 yr, or about 6,164 days.

An eccentricity of 0.382 makes the orbit moderately elongated.

Its inclination of 3.28° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 17.4 km/s at perihelion and falls to 7.8 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.87, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 810 observations and has a weighted RMS residual of 0.535 arcseconds.

Condition code U = 0 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
6.579 AU
Eccentricity
0.3821
Perihelion
4.065 AU
Aphelion
9.092836 AU
Inclination
3.28°
Orbital Period
— yr
Epoch
2459669.5
Mean Anomaly
5.29°

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
0.53498
Condition
0
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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