SpaceAtlas Space Object Data
NASA JPL SBDB · 2014 Q3

Borisov

Borisov follows a distinctly cometary orbit: an eccentricity of 0.942 carries it from 1.647 AU at perihelion out to 55.214 AU at aphelion.

comet Observations: 766
Orbital Period · P
152 yr
v(q)
32.3 km/s
v(Q)
1 km/s
TJ
0.18
Eccentricity · e
0.9421

Orbit and dynamics

Between its closest point (1.647 AU) and its farthest (55.214 AU), the heliocentric distance changes by 53.567 AU over every revolution.

One full revolution takes 152 yr (55,368 days), computed from the semi-major axis of 28.43 AU.

The high eccentricity (0.942) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 89.95° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 32.3 km/s at perihelion and falls to 1 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 0.18, 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 766 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5761 arcseconds.

Condition code U = 4 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
28.43 AU
Eccentricity
0.9421
Perihelion
1.647 AU
Aphelion
55.213903 AU
Inclination
89.95°
Orbital Period
— yr
Epoch
2456949.5
Mean Anomaly
359.8°

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
0.57606
Condition
4
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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