SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 SH6

2023 SH6

2023 SH6 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.727 AU once every 4.50 yr.

Amor Observations: 26
Orbital Period · P
4.50 yr
v(q)
33.1 km/s
v(Q)
9.8 km/s
Diameter · ≈
0.19 km
TJ
3.09
Eccentricity · e
0.5424

Orbit and dynamics

The path is an ellipse reaching 1.248 AU from the Sun at perihelion and 4.206 AU at aphelion, a radial span of 2.958 AU.

Applying Kepler's third law to a = 2.727 AU gives an orbital period of 4.50 yr, or about 1,645 days.

The high eccentricity (0.542) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12.82° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.1 km/s at perihelion and falls to 9.8 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 = 21.31 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.19 km.

Observation record and orbit quality

The current orbit solution is based on 26 observations and has a weighted RMS residual of 0.5803 arcseconds.

Condition code U = 5 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
2.727 AU
Eccentricity
0.5424
Perihelion
1.248 AU
Aphelion
4.206125 AU
Inclination
12.82°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
218.34°

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

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2032-Sep-26 21:49 0.409738 AU
61295872 km
9.86 km/s
2041-Sep-24 22:14 0.279401 AU
41797740 km
8.45 km/s
2050-Sep-25 05:50 0.273926 AU
40978797 km
8.45 km/s
2059-Sep-18 00:48 0.383019 AU
57298882 km
7.04 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
21.31

Orbit Quality

RMS
0.5803
Condition
5
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. 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

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