SpaceAtlas Space Object Data
NASA JPL SBDB · 2011 N1

ASH

ASH follows a distinctly cometary orbit: an eccentricity of 0.546 carries it from 2.858 AU at perihelion out to 9.73 AU at aphelion.

comet Observations: 269
Orbital Period · P
15.8 yr
v(q)
21.9 km/s
v(Q)
6.4 km/s
TJ
2.32
Eccentricity · e
0.5459

Orbit and dynamics

Between its closest point (2.858 AU) and its farthest (9.73 AU), the heliocentric distance changes by 6.872 AU over every revolution.

One full revolution takes 15.8 yr (5,767 days), computed from the semi-major axis of 6.294 AU.

The high eccentricity (0.546) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 35.67° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 21.9 km/s at perihelion and falls to 6.4 km/s at aphelion.

Its Tisserand parameter with respect to Jupiter is T_J = 2.32, a standard discriminator between asteroidal and cometary dynamics.

Size and surface

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

Observation record and orbit quality

Astrometry from 269 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5667 arcseconds.

Condition code U = 3 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
6.294 AU
Eccentricity
0.5459
Perihelion
2.858 AU
Aphelion
9.729895 AU
Inclination
35.67°
Orbital Period
— yr
Epoch
2455925.5
Mean Anomaly
350.43°

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
0.56671
Condition
3
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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