SpaceAtlas Space Object Data
NASA JPL SBDB · 2023 RW7

2023 RW7

2023 RW7 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.292 AU once every 1.47 yr.

Amor Observations: 31
Orbital Period · P
1.47 yr
v(q)
31.4 km/s
v(Q)
21.9 km/s
Diameter · ≈
0.04 km
TJ
4.99
Eccentricity · e
0.1781

Orbit and dynamics

Between its closest point (1.062 AU) and its farthest (1.522 AU), the heliocentric distance changes by 0.46 AU over every revolution.

One full revolution takes 1.47 yr (536 days), computed from the semi-major axis of 1.292 AU.

An eccentricity of 0.178 makes the orbit moderately elongated.

The orbital plane is tilted 11.74° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 31.4 km/s at perihelion and falls to 21.9 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 = 24.95 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 31 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6604 arcseconds.

Condition code U = 7 signals a poorly constrained orbit, so its future path should be treated as provisional.

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
1.292 AU
Eccentricity
0.1781
Perihelion
1.062 AU
Aphelion
1.522105 AU
Inclination
11.74°
Orbital Period
— yr
Epoch
2460200.5
Mean Anomaly
336.87°

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-Jan-07 12:36 0.339848 AU
50840502 km
4.82 km/s
2030-Feb-16 04:26 0.427892 AU
64011747 km
8.25 km/s
2048-Sep-17 19:24 0.024140 AU
3611339 km
8.44 km/s
2070-Sep-21 09:44 0.069750 AU
10434467 km
6.53 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
24.95

Orbit Quality

RMS
0.66038
Condition
7
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.