SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 RL2

2017 RL2

2017 RL2 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.105 AU once every 1.16 yr.

Amor Observations: 44
Orbital Period · P
1.16 yr
v(q)
29.6 km/s
v(Q)
27.1 km/s
Diameter · ≈
0.02 km
TJ
5.63
Eccentricity · e
0.0457

Orbit and dynamics

The path is an ellipse reaching 1.055 AU from the Sun at perihelion and 1.155 AU at aphelion, a radial span of 0.1 AU.

Applying Kepler's third law to a = 1.105 AU gives an orbital period of 1.16 yr, or about 424 days.

With e = 0.046, the orbit is close to circular.

Its inclination of 2.9° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 29.6 km/s at perihelion and falls to 27.1 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 = 26.12 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.02 km.

Observation record and orbit quality

The current orbit solution is based on 44 observations and has a weighted RMS residual of 0.5047 arcseconds.

Condition code U = 5 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
1.105 AU
Eccentricity
0.0457
Perihelion
1.055 AU
Aphelion
1.155498 AU
Inclination
2.9°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
192.21°

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
2032-Jan-01 16:46 0.154401 AU
23097990 km
2.67 km/s
2039-Feb-17 07:04 0.166731 AU
24942564 km
3.32 km/s
2046-Apr-02 20:21 0.148362 AU
22194630 km
2.92 km/s
2053-Jun-03 04:52 0.104571 AU
15643613 km
1.11 km/s
2060-Sep-01 13:34 0.045799 AU
6851395 km
1.53 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
26.12

Orbit Quality

RMS
0.50467
Condition
5
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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