SpaceAtlas Space Object Data
NASA JPL SBDB · 30P

Reinmuth

Reinmuth follows a distinctly cometary orbit: an eccentricity of 0.502 carries it from 1.877 AU at perihelion out to 5.665 AU at aphelion.

comet Observations: 2,543
Orbital Period · P
7.32 yr
v(q)
26.6 km/s
v(Q)
8.8 km/s
TJ
2.84
Eccentricity · e
0.5023

Orbit and dynamics

The path is an ellipse reaching 1.877 AU from the Sun at perihelion and 5.665 AU at aphelion, a radial span of 3.788 AU.

Applying Kepler's third law to a = 3.771 AU gives an orbital period of 7.32 yr, or about 2,675 days.

The high eccentricity (0.502) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.13° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 26.6 km/s at perihelion and falls to 8.8 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.84, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

The measured diameter is 7.8 km, a value from direct size determination rather than from brightness alone.

Observation record and orbit quality

The current orbit solution is based on 2,543 observations and has a weighted RMS residual of 0.6745 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
3.771 AU
Eccentricity
0.5023
Perihelion
1.877 AU
Aphelion
5.665173 AU
Inclination
8.13°
Orbital Period
— yr
Epoch
2457497.5
Mean Anomaly
294.44°

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
7.8 km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
—

Orbit Quality

RMS
0.67446
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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