SpaceAtlas Space Object Data
NASA JPL SBDB · 2003 PN5

2003 PN5

2003 PN5 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.435 AU once every 1.72 yr.

Amor Observations: 37
Orbital Period · P
1.72 yr
v(q)
33.1 km/s
v(Q)
18.7 km/s
Diameter · ≈
0.08 km
TJ
4.62
Eccentricity · e
0.2779

Orbit and dynamics

The path is an ellipse reaching 1.036 AU from the Sun at perihelion and 1.834 AU at aphelion, a radial span of 0.798 AU.

Applying Kepler's third law to a = 1.435 AU gives an orbital period of 1.72 yr, or about 628 days.

An eccentricity of 0.278 makes the orbit moderately elongated.

The orbital plane is tilted 10.55° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 33.1 km/s at perihelion and falls to 18.7 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 = 23.2 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.08 km.

Observation record and orbit quality

The current orbit solution is based on 37 observations and has a weighted RMS residual of 0.5796 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
1.435 AU
Eccentricity
0.2779
Perihelion
1.036 AU
Aphelion
1.833787 AU
Inclination
10.55°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
125.48°

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-28 19:03 0.428629 AU
64121957 km
6.33 km/s
2027-Aug-19 23:03 0.310971 AU
46520544 km
15.67 km/s
2034-May-20 16:05 0.313160 AU
46848107 km
13.03 km/s
2058-Jul-31 03:55 0.052404 AU
7839539 km
7.63 km/s
2070-Aug-16 01:41 0.081941 AU
12258145 km
13.67 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
23.2

Orbit Quality

RMS
0.57962
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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