SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 QH2

2020 QH2

2020 QH2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.167 AU once every 3.19 yr.

Amor Observations: 63
Orbital Period · P
3.19 yr
v(q)
31.7 km/s
v(Q)
12.9 km/s
Diameter · ≈
0.15 km
TJ
3.57
Eccentricity · e
0.4223

Orbit and dynamics

Between its closest point (1.252 AU) and its farthest (3.082 AU), the heliocentric distance changes by 1.83 AU over every revolution.

One full revolution takes 3.19 yr (1,165 days), computed from the semi-major axis of 2.167 AU.

The high eccentricity (0.422) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 5.49° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.7 km/s at perihelion and falls to 12.9 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 = 21.85 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.15 km.

Observation record and orbit quality

Astrometry from 63 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5547 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
2.167 AU
Eccentricity
0.4223
Perihelion
1.252 AU
Aphelion
3.082124 AU
Inclination
5.49°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
292.8°

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

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

Date (UTC)Miss distanceVelocity
2036-Oct-08 15:02 0.485218 AU
72587560 km
0.85 km/s
2071-Aug-15 21:06 0.355471 AU
53177671 km
3.05 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
21.85

Orbit Quality

RMS
0.55467
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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