SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 QN

2020 QN

2020 QN is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.255 AU once every 1.41 yr.

Amor Observations: 38
Orbital Period · P
1.41 yr
v(q)
31.5 km/s
v(Q)
22.5 km/s
Diameter · ≈
0.03 km
TJ
5.1
Eccentricity · e
0.166

Orbit and dynamics

Between its closest point (1.046 AU) and its farthest (1.463 AU), the heliocentric distance changes by 0.417 AU over every revolution.

One full revolution takes 1.41 yr (514 days), computed from the semi-major axis of 1.255 AU.

An eccentricity of 0.166 makes the orbit moderately elongated.

The orbital plane is tilted 10.25° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.5 km/s at perihelion and falls to 22.5 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 = 25.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

Astrometry from 38 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5177 arcseconds.

Condition code U = 6 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
1.255 AU
Eccentricity
0.166
Perihelion
1.046 AU
Aphelion
1.46333 AU
Inclination
10.25°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
81.58°

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
2027-Apr-07 18:04 0.253994 AU
37997023 km
4.85 km/s
2027-Aug-11 16:30 0.155830 AU
23311821 km
9.09 km/s
2034-Mar-13 16:12 0.311752 AU
46637509 km
6.67 km/s
2034-Aug-17 23:42 0.321752 AU
48133480 km
13.83 km/s
2037-Nov-25 21:50 0.478210 AU
71539223 km
7.09 km/s
2041-Feb-22 22:49 0.368965 AU
55196445 km
7.72 km/s
2044-Nov-04 17:22 0.422068 AU
63140506 km
5.99 km/s
2048-Feb-07 20:09 0.418801 AU
62651773 km
8.34 km/s
2055-Jan-24 06:36 0.458080 AU
68527857 km
8.62 km/s
2062-Jan-11 01:11 0.485653 AU
72652635 km
8.63 km/s
2065-Aug-06 23:50 0.072826 AU
10894654 km
5.67 km/s
2072-Aug-09 12:26 0.069301 AU
10367264 km
7.84 km/s
2079-Aug-16 00:20 0.136734 AU
20455175 km
11.91 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
25.6

Orbit Quality

RMS
0.51768
Condition
6
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.