SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 OA68

2017 OA68

2017 OA68 is an Amor-type near-Earth asteroid that approaches Earth from beyond our orbit without crossing it, orbiting the Sun at 1.538 AU once every 1.91 yr.

Amor Observations: 13
Orbital Period · P
1.91 yr
v(q)
30.5 km/s
v(Q)
18.9 km/s
Diameter · ≈
0.11 km
TJ
4.32
Eccentricity · e
0.236

Orbit and dynamics

Between its closest point (1.175 AU) and its farthest (1.901 AU), the heliocentric distance changes by 0.726 AU over every revolution.

One full revolution takes 1.91 yr (697 days), computed from the semi-major axis of 1.538 AU.

An eccentricity of 0.236 makes the orbit moderately elongated.

A steep inclination of 27.28° carries it well above and below the ecliptic plane.

By the vis-viva equation its orbital speed rises to 30.5 km/s at perihelion and falls to 18.9 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 = 22.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.11 km.

Observation record and orbit quality

Astrometry from 13 individual observations underpins this orbit; the fit leaves an RMS residual of 0.3646 arcseconds.

Condition code U = 8 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
1.538 AU
Eccentricity
0.236
Perihelion
1.175 AU
Aphelion
1.900968 AU
Inclination
27.28°
Orbital Period
— yr
Epoch
2457962.5
Mean Anomaly
38.61°

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
22.5

Orbit Quality

RMS
0.3646
Condition
8
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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