SpaceAtlas Space Object Data
NASA JPL SBDB · 2002 PE130

2002 PE130

2002 PE130 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 2.552 AU it takes 4.08 yr to circle the Sun.

Apollo Observations: 145
Orbital Period · P
4.08 yr
v(q)
38.8 km/s
v(Q)
9 km/s
Diameter · ≈
0.71 km
TJ
3.09
Eccentricity · e
0.6245

Orbit and dynamics

The path is an ellipse reaching 0.958 AU from the Sun at perihelion and 4.146 AU at aphelion, a radial span of 3.188 AU.

Applying Kepler's third law to a = 2.552 AU gives an orbital period of 4.08 yr, or about 1,489 days.

The high eccentricity (0.625) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 15.54° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 38.8 km/s at perihelion and falls to 9 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 = 18.51 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.71 km.

Observation record and orbit quality

The current orbit solution is based on 145 observations and has a weighted RMS residual of 0.639 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
2.552 AU
Eccentricity
0.6245
Perihelion
0.958 AU
Aphelion
4.145724 AU
Inclination
15.54°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
284.64°

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
2051-Aug-19 00:47 0.447527 AU
66949094 km
24.93 km/s
2055-Oct-03 04:32 0.084915 AU
12703049 km
11.93 km/s
2059-Dec-23 10:21 0.465305 AU
69608597 km
21.79 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
18.51

Orbit Quality

RMS
0.63903
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.

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