SpaceAtlas Space Object Data
NASA JPL SBDB · 498P

LINEAR

LINEAR follows a distinctly cometary orbit: an eccentricity of 0.572 carries it from 1.964 AU at perihelion out to 7.22 AU at aphelion.

comet Observations: 368
Orbital Period · P
9.84 yr
v(q)
26.6 km/s
v(Q)
7.2 km/s
TJ
2.62
Eccentricity · e
0.5724

Orbit and dynamics

The path is an ellipse reaching 1.964 AU from the Sun at perihelion and 7.22 AU at aphelion, a radial span of 5.256 AU.

Applying Kepler's third law to a = 4.592 AU gives an orbital period of 9.84 yr, or about 3,594 days.

The high eccentricity (0.572) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 14.48° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 26.6 km/s at perihelion and falls to 7.2 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.62, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 368 observations and has a weighted RMS residual of 0.4954 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
4.592 AU
Eccentricity
0.5724
Perihelion
1.964 AU
Aphelion
7.220461 AU
Inclination
14.48°
Orbital Period
— yr
Epoch
2460344.5
Mean Anomaly
328.04°

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
0.49541
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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