SpaceAtlas Space Object Data
NASA JPL SBDB · 2026 RP

2026 RP

2026 RP is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.879 AU and a period of 0.82 yr.

Aten Observations: 45
Orbital Period · P
0.82 yr
v(q)
44.6 km/s
v(Q)
22.6 km/s
Diameter · ≈
0.08 km
TJ
6.65
Eccentricity · e
0.3271

Orbit and dynamics

Between its closest point (0.591 AU) and its farthest (1.166 AU), the heliocentric distance changes by 0.575 AU over every revolution.

One full revolution takes 0.82 yr (301 days), computed from the semi-major axis of 0.879 AU.

An eccentricity of 0.327 makes the orbit moderately elongated.

A steep inclination of 20.9° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 44.6 km/s at perihelion and falls to 22.6 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 = 23.18 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

Astrometry from 45 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4254 arcseconds.

Condition code U = 4 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
0.8788 AU
Eccentricity
0.3271
Perihelion
0.591 AU
Aphelion
1.166255 AU
Inclination
20.9°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
75.28°

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-Oct-06 04:31 0.189868 AU
28403823 km
13.44 km/s
2040-Sep-10 10:30 0.171894 AU
25715034 km
11.68 km/s
2045-Oct-03 16:13 0.168514 AU
25209362 km
12.80 km/s
2054-Sep-07 20:21 0.180745 AU
27038995 km
11.70 km/s
2059-Oct-02 19:27 0.159351 AU
23838505 km
12.53 km/s
2068-Sep-06 13:13 0.182948 AU
27368567 km
11.71 km/s
2073-Oct-01 15:44 0.155719 AU
23295172 km
12.42 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
23.18

Orbit Quality

RMS
0.42539
Condition
4
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.