SpaceAtlas Space Object Data
NASA JPL SBDB · 2015 FO495

2015 FO495

2015 FO495 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 2.003 AU once every 2.83 yr.

Amor Observations: 13
Orbital Period · P
2.83 yr
v(q)
31.7 km/s
v(Q)
13.9 km/s
Diameter · ≈
0.01 km
TJ
3.74
Eccentricity · e
0.3895

Orbit and dynamics

The path is an ellipse reaching 1.223 AU from the Sun at perihelion and 2.783 AU at aphelion, a radial span of 1.56 AU.

Applying Kepler's third law to a = 2.003 AU gives an orbital period of 2.83 yr, or about 1,035 days.

An eccentricity of 0.39 makes the orbit moderately elongated.

Its inclination of 0.3° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 31.7 km/s at perihelion and falls to 13.9 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 = 27.25 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

The current orbit solution is based on 13 observations and has a weighted RMS residual of 0.0845 arcseconds.

Condition code U = 9 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
2.003 AU
Eccentricity
0.3895
Perihelion
1.223 AU
Aphelion
2.783168 AU
Inclination
0.3°
Orbital Period
— yr
Epoch
2457102.5
Mean Anomaly
357.62°

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

No close approaches to Earth are currently on record for this object.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
27.25

Orbit Quality

RMS
0.084488
Condition
9
Orbit ID
—
Data source: NASA JPL Small-Body Database . 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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