SpaceAtlas Space Object Data
NASA JPL SBDB · 2018 VT7

2018 VT7

2018 VT7 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.982 AU and a period of 0.97 yr.

Aten Observations: 23
Orbital Period · P
0.97 yr
v(q)
32.8 km/s
v(Q)
27.5 km/s
Diameter · ≈
0.01 km
TJ
6.16
Eccentricity · e
0.0882

Orbit and dynamics

Between its closest point (0.896 AU) and its farthest (1.069 AU), the heliocentric distance changes by 0.173 AU over every revolution.

One full revolution takes 0.97 yr (356 days), computed from the semi-major axis of 0.982 AU.

With e = 0.088, the orbit is close to circular.

Its inclination of 2.54° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 32.8 km/s at perihelion and falls to 27.5 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 = 27.9 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 23 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6796 arcseconds.

Condition code U = 5 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
0.9824 AU
Eccentricity
0.0882
Perihelion
0.896 AU
Aphelion
1.069048 AU
Inclination
2.54°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
170.35°

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
27.9

Orbit Quality

RMS
0.67962
Condition
5
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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