SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 RF5

2023 RF5

2023 RF5 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.243 AU once every 1.39 yr.

Amor Observations: 90
Orbital Period · P
1.39 yr
v(q)
30.2 km/s
v(Q)
23.7 km/s
Diameter · ≈
0.06 km
TJ
5.13
Eccentricity · e
0.1208

Orbit and dynamics

Between its closest point (1.093 AU) and its farthest (1.393 AU), the heliocentric distance changes by 0.3 AU over every revolution.

One full revolution takes 1.39 yr (506 days), computed from the semi-major axis of 1.243 AU.

An eccentricity of 0.121 makes the orbit moderately elongated.

The orbital plane is tilted 14.49° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 30.2 km/s at perihelion and falls to 23.7 km/s at aphelion.

Its perihelion lies just outside Earth's orbit, which is why it is classed as Earth-approaching rather than Earth-crossing.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.75 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.06 km.

Observation record and orbit quality

Astrometry from 90 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4152 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
1.243 AU
Eccentricity
0.1208
Perihelion
1.093 AU
Aphelion
1.393154 AU
Inclination
14.49°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
7.81°

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
2027-Mar-11 10:20 0.396324 AU
59289276 km
9.07 km/s
2030-Nov-09 01:19 0.385986 AU
57742735 km
5.65 km/s
2034-Apr-12 04:35 0.339644 AU
50810045 km
8.22 km/s
2038-Jan-24 02:01 0.457470 AU
68436525 km
7.55 km/s
2041-Sep-12 20:51 0.146723 AU
21949502 km
8.94 km/s
2045-Feb-27 16:45 0.415187 AU
62111035 km
9.00 km/s
2048-Sep-30 19:06 0.237202 AU
35484950 km
7.84 km/s
2052-Mar-29 14:57 0.355881 AU
53239049 km
8.75 km/s
2056-Jan-05 04:35 0.450636 AU
67414138 km
6.17 km/s
2059-May-08 17:48 0.326322 AU
48817086 km
6.53 km/s
2059-Sep-11 07:18 0.269976 AU
40387857 km
11.58 km/s
2063-Feb-15 06:49 0.434930 AU
65064597 km
8.67 km/s
2066-Sep-19 05:58 0.100950 AU
15101894 km
7.49 km/s
2070-Mar-18 01:50 0.375774 AU
56214970 km
9.02 km/s
2077-Apr-20 20:04 0.332078 AU
49678221 km
7.76 km/s
2077-Sep-09 03:50 0.396902 AU
59375757 km
14.41 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
23.75

Orbit Quality

RMS
0.41524
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.

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