SpaceAtlas Space Object Data
NASA JPL SBDB · 451P

Christensen

Christensen follows a distinctly cometary orbit: an eccentricity of 0.557 carries it from 2.796 AU at perihelion out to 9.838 AU at aphelion.

comet Observations: 157
Orbital Period · P
15.9 yr
v(q)
22.2 km/s
v(Q)
6.3 km/s
TJ
2.46
Eccentricity · e
0.5574

Orbit and dynamics

Between its closest point (2.796 AU) and its farthest (9.838 AU), the heliocentric distance changes by 7.042 AU over every revolution.

One full revolution takes 15.9 yr (5,799 days), computed from the semi-major axis of 6.317 AU.

The high eccentricity (0.557) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 26.49° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 22.2 km/s at perihelion and falls to 6.3 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.46, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 157 individual observations underpins this orbit; the fit leaves an RMS residual of 0.738 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
6.317 AU
Eccentricity
0.5574
Perihelion
2.796 AU
Aphelion
9.838096 AU
Inclination
26.49°
Orbital Period
— yr
Epoch
2455207.5
Mean Anomaly
67.65°

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
0.738
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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