SpaceAtlas Space Object Data
NASA JPL SBDB · 2019 SH6

2019 SH6

2019 SH6 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.004 AU once every 2.84 yr.

Amor Observations: 541
Orbital Period · P
2.84 yr
v(q)
35.3 km/s
v(Q)
12.5 km/s
Diameter · ≈
0.36 km
TJ
3.68
Eccentricity · e
0.4764

Orbit and dynamics

Between its closest point (1.049 AU) and its farthest (2.959 AU), the heliocentric distance changes by 1.91 AU over every revolution.

One full revolution takes 2.84 yr (1,036 days), computed from the semi-major axis of 2.004 AU.

The high eccentricity (0.476) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 8.17° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 35.3 km/s at perihelion and falls to 12.5 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 = 20 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.36 km.

Observation record and orbit quality

Astrometry from 541 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3873 arcseconds.

Condition code U = 0 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
2.004 AU
Eccentricity
0.4764
Perihelion
1.049 AU
Aphelion
2.958706 AU
Inclination
8.17°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
93.46°

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
2037-Jan-27 11:32 0.131900 AU
19731991 km
8.04 km/s
2054-Feb-23 12:24 0.408664 AU
61135305 km
16.33 km/s
2073-Dec-05 14:01 0.414962 AU
62077361 km
17.14 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
20.0

Orbit Quality

RMS
0.38731
Condition
0
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.

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