SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 RC8

2023 RC8

2023 RC8 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.704 AU and a period of 0.59 yr.

Aten Observations: 28
Orbital Period · P
0.59 yr
v(q)
90.4 km/s
v(Q)
14 km/s
Diameter · ≈
0.15 km
TJ
7.84
Eccentricity · e
0.7324

Orbit and dynamics

Between its closest point (0.188 AU) and its farthest (1.219 AU), the heliocentric distance changes by 1.031 AU over every revolution.

One full revolution takes 0.59 yr (216 days), computed from the semi-major axis of 0.704 AU.

The high eccentricity (0.732) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

A steep inclination of 26.95° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 90.4 km/s at perihelion and falls to 14 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 = 21.88 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.15 km.

Observation record and orbit quality

Astrometry from 28 individual observations underpins this orbit; the fit leaves an RMS residual of 0.5226 arcseconds.

Condition code U = 0 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
0.7036 AU
Eccentricity
0.7324
Perihelion
0.188 AU
Aphelion
1.218917 AU
Inclination
26.95°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
5.69°

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
2033-Sep-01 18:12 0.028548 AU
4270684 km
21.54 km/s
2043-Sep-04 18:47 0.130199 AU
19477498 km
25.78 km/s
2046-Sep-02 21:55 0.098123 AU
14679035 km
19.84 km/s
2056-Sep-02 04:01 0.045430 AU
6796208 km
23.13 km/s
2059-Sep-05 22:41 0.162938 AU
24375136 km
18.81 km/s
2069-Sep-01 23:00 0.036358 AU
5439088 km
21.26 km/s
2079-Sep-04 14:49 0.116619 AU
17446003 km
25.36 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
21.88

Orbit Quality

RMS
0.52265
Condition
0
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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