SpaceAtlas Space Object Data
NASA JPL SBDB · 436P

Garradd

Garradd follows a distinctly cometary orbit: an eccentricity of 0.672 carries it from 1.924 AU at perihelion out to 9.8 AU at aphelion.

comet Observations: 113
Orbital Period · P
14.2 yr
v(q)
27.8 km/s
v(Q)
5.5 km/s
TJ
2.36
Eccentricity · e
0.6718

Orbit and dynamics

The path is an ellipse reaching 1.924 AU from the Sun at perihelion and 9.8 AU at aphelion, a radial span of 7.876 AU.

Applying Kepler's third law to a = 5.862 AU gives an orbital period of 14.2 yr, or about 5,184 days.

The high eccentricity (0.672) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 20.21° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 27.8 km/s at perihelion and falls to 5.5 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.36, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

The current orbit solution is based on 113 observations and has a weighted RMS residual of 0.7475 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
5.862 AU
Eccentricity
0.6718
Perihelion
1.924 AU
Aphelion
9.800092 AU
Inclination
20.21°
Orbital Period
— yr
Epoch
2455662.5
Mean Anomaly
89.67°

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
0.74754
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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