SpaceAtlas Space Object Data
NASA JPL SBDB · 2020 NC

2020 NC

2020 NC is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.826 AU and a period of 0.75 yr.

Aten Observations: 89
Orbital Period · P
0.75 yr
v(q)
44.3 km/s
v(Q)
24.3 km/s
Diameter · ≈
0.13 km
TJ
7.06
Eccentricity · e
0.2913

Orbit and dynamics

The path is an ellipse reaching 0.585 AU from the Sun at perihelion and 1.067 AU at aphelion, a radial span of 0.482 AU.

Applying Kepler's third law to a = 0.826 AU gives an orbital period of 0.75 yr, or about 274 days.

An eccentricity of 0.291 makes the orbit moderately elongated.

The orbital plane is tilted 6.13° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 44.3 km/s at perihelion and falls to 24.3 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 = 22.16 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.13 km.

Observation record and orbit quality

The current orbit solution is based on 89 observations and has a weighted RMS residual of 0.4448 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
0.8262 AU
Eccentricity
0.2913
Perihelion
0.585 AU
Aphelion
1.066872 AU
Inclination
6.13°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
92.69°

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-Jul-01 07:32 0.091307 AU
13659285 km
9.39 km/s
2032-Jul-01 13:32 0.137571 AU
20580277 km
10.81 km/s
2035-Jul-03 11:54 0.190608 AU
28514579 km
12.45 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
22.16

Orbit Quality

RMS
0.44482
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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