SpaceAtlas Space Object Data
NASA JPL SBDB · 277P

LINEAR

LINEAR follows a distinctly cometary orbit: an eccentricity of 0.504 carries it from 1.914 AU at perihelion out to 5.802 AU at aphelion.

comet Observations: 828
Orbital Period · P
7.58 yr
v(q)
26.4 km/s
v(Q)
8.7 km/s
TJ
2.77
Eccentricity · e
0.5038

Orbit and dynamics

Between its closest point (1.914 AU) and its farthest (5.802 AU), the heliocentric distance changes by 3.888 AU over every revolution.

One full revolution takes 7.58 yr (2,768 days), computed from the semi-major axis of 3.858 AU.

The high eccentricity (0.504) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 16.75° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 26.4 km/s at perihelion and falls to 8.7 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.77, 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

Astrometry from 828 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5763 arcseconds.

Condition code U = 1 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
3.858 AU
Eccentricity
0.5038
Perihelion
1.914 AU
Aphelion
5.80166 AU
Inclination
16.75°
Orbital Period
— yr
Epoch
2457647.5
Mean Anomaly
155.99°

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
0.57634
Condition
1
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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