SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 QT

2020 QT

2020 QT is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.374 AU once every 1.61 yr.

Amor Observations: 27
Orbital Period · P
1.61 yr
v(q)
31.2 km/s
v(Q)
20.7 km/s
Diameter · ≈
0.05 km
TJ
4.75
Eccentricity · e
0.2033

Orbit and dynamics

Between its closest point (1.095 AU) and its farthest (1.653 AU), the heliocentric distance changes by 0.558 AU over every revolution.

One full revolution takes 1.61 yr (588 days), computed from the semi-major axis of 1.374 AU.

An eccentricity of 0.203 makes the orbit moderately elongated.

The orbital plane is tilted 17.85° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.2 km/s at perihelion and falls to 20.7 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 = 24.3 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.05 km.

Observation record and orbit quality

Astrometry from 27 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6095 arcseconds.

Condition code U = 7 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
1.374 AU
Eccentricity
0.2033
Perihelion
1.095 AU
Aphelion
1.653334 AU
Inclination
17.85°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
207.08°

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
2028-Aug-27 21:06 0.226460 AU
33877913 km
11.56 km/s
2041-Aug-16 04:09 0.152598 AU
22828311 km
14.38 km/s
2049-Aug-24 02:50 0.081270 AU
12157892 km
9.69 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
24.3

Orbit Quality

RMS
0.60951
Condition
7
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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