SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 DS2

2020 DS2

2020 DS2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.376 AU it takes 3.66 yr to circle the Sun.

Apollo Observations: 83
Orbital Period · P
3.66 yr
v(q)
63.6 km/s
v(Q)
5.9 km/s
Diameter · ≈
0.16 km
TJ
2.93
Eccentricity · e
0.8311

Orbit and dynamics

The path is an ellipse reaching 0.401 AU from the Sun at perihelion and 4.351 AU at aphelion, a radial span of 3.95 AU.

Applying Kepler's third law to a = 2.376 AU gives an orbital period of 3.66 yr, or about 1,338 days.

The high eccentricity (0.831) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 12° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 63.6 km/s at perihelion and falls to 5.9 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 = 21.78 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.16 km.

Observation record and orbit quality

The current orbit solution is based on 83 observations and has a weighted RMS residual of 0.4867 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

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
2.376 AU
Eccentricity
0.8311
Perihelion
0.401 AU
Aphelion
4.350694 AU
Inclination
12.0°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
274.53°

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
2031-Feb-03 23:26 0.186300 AU
27870157 km
24.00 km/s
2034-Jul-01 00:55 0.211565 AU
31649607 km
29.86 km/s
2071-Feb-26 00:21 0.356742 AU
53367812 km
38.24 km/s
2074-Aug-26 14:33 0.484194 AU
72434424 km
22.66 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
21.78

Orbit Quality

RMS
0.48666
Condition
1
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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