SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 SC1

2023 SC1

2023 SC1 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.972 AU and a period of 0.96 yr.

Aten Observations: 41
Orbital Period · P
0.96 yr
v(q)
38.9 km/s
v(Q)
23.5 km/s
Diameter · ≈
0.06 km
TJ
6.18
Eccentricity · e
0.2474

Orbit and dynamics

The path is an ellipse reaching 0.731 AU from the Sun at perihelion and 1.212 AU at aphelion, a radial span of 0.481 AU.

Applying Kepler's third law to a = 0.972 AU gives an orbital period of 0.96 yr, or about 350 days.

An eccentricity of 0.247 makes the orbit moderately elongated.

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

By the vis-viva equation its orbital speed rises to 38.9 km/s at perihelion and falls to 23.5 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 = 23.79 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.06 km.

Observation record and orbit quality

The current orbit solution is based on 41 observations and has a weighted RMS residual of 0.5701 arcseconds.

Condition code U = 2 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
0.9717 AU
Eccentricity
0.2474
Perihelion
0.731 AU
Aphelion
1.212099 AU
Inclination
12.0°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
87.8°

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
2045-Sep-05 06:31 0.159428 AU
23850027 km
8.02 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
23.79

Orbit Quality

RMS
0.5701
Condition
2
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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