SpaceAtlas Space Object Data
NASA JPL SBDB · 791587

791587

791587 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.983 AU and a period of 0.97 yr.

Aten Observations: 256
Orbital Period · P
0.97 yr
v(q)
59.6 km/s
v(Q)
15.1 km/s
Diameter · ≈
0.17 km
TJ
5.99
Eccentricity · e
0.5948

Orbit and dynamics

The path is an ellipse reaching 0.398 AU from the Sun at perihelion and 1.567 AU at aphelion, a radial span of 1.169 AU.

Applying Kepler's third law to a = 0.983 AU gives an orbital period of 0.97 yr, or about 356 days.

The high eccentricity (0.595) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 2.64° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 59.6 km/s at perihelion and falls to 15.1 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 21.61 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.17 km.

Observation record and orbit quality

The current orbit solution is based on 256 observations and has a weighted RMS residual of 0.5052 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
0.9827 AU
Eccentricity
0.5948
Perihelion
0.398 AU
Aphelion
1.56721 AU
Inclination
2.64°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
270.54°

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
21.61

Orbit Quality

RMS
0.50519
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.

Keep exploring

Explore asteroids, comets and near-Earth objects with JPL orbital data.