SpaceAtlas Space Object Data
NASA JPL SBDB · 1906 B1

Brooks

Brooks follows a distinctly cometary orbit: an eccentricity of 1 carries it from 1.296 AU at perihelion out to 17,707 AU at aphelion.

comet Observations: 158
Orbital Period · P
833,123 yr
v(q)
37 km/s
v(Q)
0 km/s
TJ
-0.69
Eccentricity · e
0.9999

Orbit and dynamics

Between its closest point (1.296 AU) and its farthest (17,707 AU), the heliocentric distance changes by 17,706 AU over every revolution.

One full revolution takes 833,123 yr (304,298,282 days), computed from the semi-major axis of 8,854.0 AU.

The high eccentricity (1) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 126.4° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 37 km/s at perihelion and falls to 0 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = -0.69, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 158 individual observations underpins this orbit; the fit leaves an RMS residual of 1.0501 arcseconds.

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
8854.0 AU
Eccentricity
0.9999
Perihelion
1.296 AU
Aphelion
17707.1146 AU
Inclination
126.44°
Orbital Period
— yr
Epoch
2417263.5
Mean Anomaly
0.0°

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
1.0501
Condition
—
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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