SpaceAtlas Space Object Data
NASA JPL SBDB · 2013 N4

Borisov

Borisov follows a distinctly cometary orbit: an eccentricity of 0.975 carries it from 1.21 AU at perihelion out to 94.869 AU at aphelion.

comet Observations: 287
Orbital Period · P
333 yr
v(q)
38.1 km/s
v(Q)
0.5 km/s
TJ
1.19
Eccentricity · e
0.9748

Orbit and dynamics

Between its closest point (1.21 AU) and its farthest (94.869 AU), the heliocentric distance changes by 93.659 AU over every revolution.

One full revolution takes 333 yr (121,617 days), computed from the semi-major axis of 48.04 AU.

The high eccentricity (0.975) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 37.04° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 38.1 km/s at perihelion and falls to 0.5 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 1.19, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 287 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6948 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
48.04 AU
Eccentricity
0.9748
Perihelion
1.21 AU
Aphelion
94.869392 AU
Inclination
37.04°
Orbital Period
— yr
Epoch
2456550.5
Mean Anomaly
0.07°

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
0.6948
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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