SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 QY

2020 QY

2020 QY is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.856 AU and a period of 0.79 yr.

Aten Observations: 48
Orbital Period · P
0.79 yr
v(q)
48.5 km/s
v(Q)
21.4 km/s
Diameter · ≈
0.03 km
TJ
6.75
Eccentricity · e
0.3886

Orbit and dynamics

The path is an ellipse reaching 0.523 AU from the Sun at perihelion and 1.188 AU at aphelion, a radial span of 0.665 AU.

Applying Kepler's third law to a = 0.856 AU gives an orbital period of 0.79 yr, or about 289 days.

An eccentricity of 0.389 makes the orbit moderately elongated.

A steep inclination of 26.41° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 48.5 km/s at perihelion and falls to 21.4 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 25.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.03 km.

Observation record and orbit quality

The current orbit solution is based on 48 observations and has a weighted RMS residual of 0.5285 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
0.8557 AU
Eccentricity
0.3886
Perihelion
0.523 AU
Aphelion
1.188225 AU
Inclination
26.41°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
21.46°

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
2027-Apr-23 14:05 0.425101 AU
63594271 km
18.20 km/s
2028-Aug-03 02:50 0.449954 AU
67312172 km
28.07 km/s
2031-Mar-25 23:42 0.386789 AU
57862741 km
19.31 km/s
2031-Jul-27 08:50 0.359425 AU
53769218 km
13.50 km/s
2035-Feb-28 08:25 0.395154 AU
59114264 km
21.38 km/s
2035-Aug-16 05:04 0.161659 AU
24183866 km
13.50 km/s
2039-Feb-04 08:19 0.433869 AU
64905810 km
23.00 km/s
2039-Aug-19 10:16 0.003889 AU
581755 km
16.13 km/s
2043-Aug-11 11:53 0.150456 AU
22507934 km
22.78 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
25.1

Orbit Quality

RMS
0.52851
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.

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