SpaceAtlas Space Object Data
NASA JPL SBDB · 2012 SH58

2012 SH58

2012 SH58 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.903 AU once every 2.63 yr.

Amor Observations: 18
Orbital Period · P
2.63 yr
v(q)
35.4 km/s
v(Q)
13.1 km/s
Diameter · ≈
0.01 km
TJ
3.81
Eccentricity · e
0.459

Orbit and dynamics

Between its closest point (1.03 AU) and its farthest (2.776 AU), the heliocentric distance changes by 1.746 AU over every revolution.

One full revolution takes 2.63 yr (959 days), computed from the semi-major axis of 1.903 AU.

The high eccentricity (0.459) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

Its inclination of 0.34° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.4 km/s at perihelion and falls to 13.1 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 27 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 18 individual observations underpins this orbit; the fit leaves an RMS residual of 0.9904 arcseconds.

Condition code U = 8 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.903 AU
Eccentricity
0.459
Perihelion
1.03 AU
Aphelion
2.776477 AU
Inclination
0.34°
Orbital Period
— yr
Epoch
2456197.5
Mean Anomaly
0.8°

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
27.0

Orbit Quality

RMS
0.99044
Condition
8
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.