SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 QC

2023 QC

2023 QC belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.372 AU it takes 1.61 yr to circle the Sun.

Apollo Observations: 258
Orbital Period · P
1.61 yr
v(q)
34.9 km/s
v(Q)
18.5 km/s
Diameter · ≈
0.04 km
TJ
4.76
Eccentricity · e
0.3068

Orbit and dynamics

The path is an ellipse reaching 0.951 AU from the Sun at perihelion and 1.793 AU at aphelion, a radial span of 0.842 AU.

Applying Kepler's third law to a = 1.372 AU gives an orbital period of 1.61 yr, or about 587 days.

An eccentricity of 0.307 makes the orbit moderately elongated.

The orbital plane is tilted 7.2° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 34.9 km/s at perihelion and falls to 18.5 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 = 24.73 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

The current orbit solution is based on 258 observations and has a weighted RMS residual of 0.3469 arcseconds.

Condition code U = 6 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
1.372 AU
Eccentricity
0.3068
Perihelion
0.951 AU
Aphelion
1.79293 AU
Inclination
7.2°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
292.07°

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-Mar-18 10:07 0.463259 AU
69302494 km
7.32 km/s
2031-Sep-05 10:05 0.203018 AU
30371033 km
13.88 km/s
2039-Sep-17 21:42 0.423883 AU
63411935 km
20.66 km/s
2044-Apr-21 00:17 0.336456 AU
50333026 km
17.47 km/s
2052-May-05 01:39 0.143664 AU
21491776 km
10.50 km/s
2052-Oct-01 09:17 0.385100 AU
57610149 km
5.01 km/s
2068-Aug-18 23:17 0.006099 AU
912462 km
8.13 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
24.73

Orbit Quality

RMS
0.34688
Condition
6
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

Explore asteroids, comets and near-Earth objects with JPL orbital data.