SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 YQ8

2017 YQ8

2017 YQ8 is an Aten-type near-Earth asteroid whose orbit lies mostly inside that of Earth, with a semi-major axis of 0.989 AU and a period of 0.98 yr.

Aten Observations: 25
Orbital Period · P
0.98 yr
v(q)
46.1 km/s
v(Q)
19.5 km/s
Diameter · ≈
0.04 km
TJ
6.03
Eccentricity · e
0.406

Orbit and dynamics

Between its closest point (0.587 AU) and its farthest (1.39 AU), the heliocentric distance changes by 0.803 AU over every revolution.

One full revolution takes 0.98 yr (359 days), computed from the semi-major axis of 0.989 AU.

The high eccentricity (0.406) produces a strongly elongated orbit, so the object spends most of its time far from the Sun.

The orbital plane is tilted 17.08° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 46.1 km/s at perihelion and falls to 19.5 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 = 24.6 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.04 km.

Observation record and orbit quality

Astrometry from 25 individual observations underpins this orbit; the fit leaves an RMS residual of 0.6061 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
0.9887 AU
Eccentricity
0.406
Perihelion
0.587 AU
Aphelion
1.390112 AU
Inclination
17.08°
Orbital Period
— yr
Epoch
2458121.5
Mean Anomaly
286.64°

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

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
24.6

Orbit Quality

RMS
0.60611
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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