SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 QY3

2020 QY3

2020 QY3 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.08 AU it takes 1.12 yr to circle the Sun.

Apollo Observations: 39
Orbital Period · P
1.12 yr
v(q)
32.1 km/s
v(Q)
25.6 km/s
Diameter · ≈
0.04 km
TJ
5.71
Eccentricity · e
0.1133

Orbit and dynamics

Between its closest point (0.957 AU) and its farthest (1.202 AU), the heliocentric distance changes by 0.245 AU over every revolution.

One full revolution takes 1.12 yr (410 days), computed from the semi-major axis of 1.08 AU.

An eccentricity of 0.113 makes the orbit moderately elongated.

The orbital plane is tilted 10.07° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.1 km/s at perihelion and falls to 25.6 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 = 24.8 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 39 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4276 arcseconds.

Condition code U = 3 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
1.08 AU
Eccentricity
0.1133
Perihelion
0.957 AU
Aphelion
1.202364 AU
Inclination
10.07°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
314.59°

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
2029-Sep-23 04:30 0.134098 AU
20060773 km
7.41 km/s
2030-Mar-21 07:16 0.196847 AU
29447842 km
5.24 km/s
2038-Sep-23 07:50 0.300168 AU
44904481 km
11.89 km/s
2039-Jun-16 02:11 0.264533 AU
39573556 km
3.94 km/s
2040-Mar-05 12:05 0.367125 AU
54921160 km
14.38 km/s
2047-Sep-17 21:36 0.486217 AU
72737016 km
17.20 km/s
2048-Aug-06 22:38 0.202432 AU
30283372 km
5.31 km/s
2049-Feb-26 15:03 0.171980 AU
25727770 km
9.20 km/s
2057-Sep-05 19:09 0.110897 AU
16589997 km
5.41 km/s
2058-Feb-23 22:29 0.034460 AU
5155142 km
5.94 km/s
2066-Sep-18 08:44 0.084575 AU
12652267 km
5.95 km/s
2067-Feb-27 19:31 0.103320 AU
15456475 km
5.26 km/s
2075-Sep-24 21:30 0.179145 AU
26799778 km
8.68 km/s
2076-Apr-17 18:50 0.237338 AU
35505320 km
4.34 km/s
2077-Mar-11 11:52 0.491841 AU
73578312 km
18.06 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
24.8

Orbit Quality

RMS
0.42761
Condition
3
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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